Metalbest 244248 Galvanized Type L VP 4" Type L Pellet Pipe to 8" Chimney Adapter

Metalbest 244248 Galvanized Type L VP 4" Type L Pellet Pipe to 8" Chimney Adapter

Metalbest 4VP A8 Type L Galvanized VP Vent Pipe Adapter 4" Type L Pellet Pipe to 8" Chimney Adapter from the VP CollectionThe chimney pipe adapter is used to transition from VP Pellet Pipe to Ultra Temp chimney pipe It also increases the diameter The VP Collection features proven coupling joint connects in seconds to assure joint integrity gasketed joint design painted pipe lengths available for interior use The rolled over male end eliminates sharp edges and internal spacing bead assures uniform insulating air space between pipe walls VP pellet pipe works for pellet or corn burning stoves approved for use with PL Vent The appliance s flue gases must not exceed 570 F and the pipe is UL Listed to ULC S609 ULC ORD C441 and UL 641 Features:Materials: Inner wall 304 stainless steel and outer wall paintable galvanizedClearance: 1" to combustiblesFuels: Pellet CornTemperature: 570 degrees FUL Listed: UL641Gasketed joint designInternal spacing bead assures uniform insulating airspaceWarranty:

Metalbest 136800 Galvanized Type B QC 36" Type B Gas Vent Stack Cap Termination

Metalbest 136800 Galvanized Type B QC 36" Type B Gas Vent Stack Cap Termination

Metalbest 36QC RT Type B Galvanized QC Vent Pipe chimney cap 36" Type B Gas Vent Stack Cap Termination from the QC Collection Part of the chimney system roof assembly the stack cap is designed with a dome to exclude rain and leaves The cap is designed as the termination of the venting system The QC series offers round gas vent pipe and fittings for large residential industrial and commercial applications Its adjustable length pipes eliminates the need for all cutting fitting and special engineering It features double wall pipe with built in air space to reduce clearances and durable galvanized outer pipe with die formed ends Features: Large residential industrial and commercial applications Materials: Galvanized steel outer and aluminum inner liner Fuel: Gas UL 441 listed Minimum Safety Clearance to Combustibles: 1" for diameters of 10" to 24" 2" for diameters 26" to 48" Warranty: Lifetime Limited Warranty

DuraVent FSASMF-4 Stainless Steel AL29-4C FasNSeal Flexible Vent Female Adapter for 4 Inch FasNSeal Vent Pipe From the FasNSeal Series

DuraVent FSASMF-4 Stainless Steel AL29-4C FasNSeal Flexible Vent Female Adapter for 4 Inch FasNSeal Vent Pipe From the FasNSeal Series

DuraVent FSASMF 4 AL29 4C Stainless Steel FasNSeal Vent Pipe Adapter FasNSeal Collection FasNSeal Flexible Vent Female Adapter for 4 Inch FasNSeal Vent PipeWarranty Notice: MandG DuraVent warranty applies to this professional grade product only when installed by a trained professional installer This FasNSeal FasNSeal Flexible Vent Female Adapter for 4 Inch FasNSeal Vent Pipe features a patented built in mechanical locking band and triple lipped directional gaskets which allows for ease of installation Connects FasNSeal Flex to FasNSeal rigid Vent Pipe at the top of the system Features:Inner Diameter: 4"Fuel Types Compatible With: GasUL Listed: YesSingle Wall ConstructionLimited Lifetime WarrantyAll FasNSeal single wall and double wall vent lengths and components feature patented built in mechanical locking band and triple lipped directional gaskets All pipes and components are engineered with smooth clean welds located 90 from mechanical locking bands This construction feature allows f

Fireside Chimney Supply FireFlex 316Ti Stainless Steel Chimney Liner - 5.5in x 10ft

Fireside Chimney Supply FireFlex 316Ti Stainless Steel Chimney Liner - 5.5in x 10ft

• FireFlex 316Ti .006 thick stainless steel chimney liner only - designed to reline existing chimneys or to be used in new construction.

Fireside Chimney Supply's FireFlex chimney lining systems are made of 316Ti stainless steel and are used for all fuels. Also, 304 stainless steel which is used for solid fuels such as wood, coal or pellets. Our FireFlex 316Ti stainless steel and 304 stainless steel chimney liner systems are designed to reline existing chimneys or to be used in new construction. Manufactured using in the highest grade mill certified alloys. Manufactured with a continuous strip of stainless steel,interlocked and diagonally crimped to produce a gas and water tight system of superior strength. With 7 ply seams and 10 corrugations between each seam it will deliver the flexibility needed to get the job done. Fireside standard thickness liner is .006. Above industry standards. For Maximum flexibility we also offer .005 thickness for the tough to manuver jobs.

DuraVent 4PVP-06B 6'' Straight Length Pipe Black,

DuraVent 4PVP-06B 6'' Straight Length Pipe Black,

• This product requires: 1 (3 in Canada) air clearance to combustibles for all diameters.Connection
• Joint/Connection Overlap: 1-1/2.
• Joint/Connection Type: Twist-Lock standard on all diameters.Material Specifications:
• Outer Wall: Galvalume Laser Welded.
• Inner Wall: 304 Stainless Steel, Laser Welded.

6'' Straight Length Pipe Black

Vent-A-Hood WDCM-60 SS Stainless Steel M 60" Duct Cover for the PRH18-M60 and PRXH18-M60 M Collection Range Hoods WDCM-60

Vent-A-Hood WDCM-60 SS Stainless Steel M 60" Duct Cover for the PRH18-M60 and PRXH18-M60 M Collection Range Hoods WDCM-60

M Collection 60" Duct Cover for the PRH18-M60 and PRXH18-M60 Range HoodsVent-A-Hood s M Collection provides the flair of commercial style in a residential environment. Finished in gleaming stainless steel these wall mount duct covers come in standard sizes for 8 , 9 and 10 ceiling heights. Complete the installation of your Vent-A-Hood vent or replace an existing system with these high quality covers.Features:Width: 60 InchesHeight: 12 InchesDepth: 12 InchesFor 8 Foot CeilingsWhy purchase Vent-A-Hood? Vent-A-Hood is the only ventilation manufacturer to provide grease extraction without messy, hard to clean filters. More efficient than filter type hoods, Vent-A-Hood offers the quietest hoods in the industry, quieter in your kitchen than a remote blower. For over 75 years, Vent-A-Hood has maintained its specialization and focused on becoming the definitive home ventilation brand in the appliance industry.

4'' DuraVent B Vent Firestop Spacer - 4GVFS

4'' DuraVent B Vent Firestop Spacer - 4GVFS

• Use at every ceiling level where Square Firestop Support is not used.
• Diameter: 4.
• ADA: No.
• Configuration: Shield.
• Depth: 8.75.

Use to support Gas Vent pipe at roof level.See all 4" Type Round B Gas Vent Components.

Metalbest 208815 Galvanized Class A Sure-Temp 8" Class A Chimney Pipe Low Roof Flashing for 0/12 to 2/12 Roof Pitch

Metalbest 208815 Galvanized Class A Sure-Temp 8" Class A Chimney Pipe Low Roof Flashing for 0/12 to 2/12 Roof Pitch

Metalbest 8T TF Class A Galvanized Ultra Temp Vent Pipe Flashing 8" Class A Chimney Pipe Low Roof Flashing for 0 12 to 2 12 Roof Pitch from Sure TempFlashings are used to seal the opening where the chimney penetrates the roof and to divert rain and snow down from the roof and away from the chimney system It is important to choose flashing that matches the pitch of your roof This flat and low roof flashing works with up to 2 12 pitch Note: To determine your roof pitch measure the number of inches from the end of a level 12Â" ruler down to the roof This is the rise for 12 inches of run For example a rise of 5 inches is a 5 12 pitch The Sure Temp Chimney System is designed to meet the needs of todayÂ's high efficiency Wood Stoves and other appliances burning wood oil or gas Components may be combined in a wide variety of ways to solve almost any chimney installation requirement Features:Materials: Stainless steelClearance: 2" to combustiblesAllowable Flue Gas Temperatures:Maximum Contin

Simpson Duravent 58DVA-E90 5x8" Direct Vent Galvanized 90 Degree Elbow

Simpson Duravent 58DVA-E90 5x8" Direct Vent Galvanized 90 Degree Elbow

• Configuration: Elbow.
• Elbow by Angle: 90 (degree).
• Fuel Type: Gas, Liquid Propane.
• Material: 0.020 Aluminum / 0.021 Galvanized Steel, Aluminum, Galvanized Steel.
• Pipe Class: Direct Vent.

The DirectVent Pro 90 Elbow features a fully unitized twist-lock construction All elbows include a swivel allowing the lock to remain fully engaged while aligning the elbow in the desired direction The angle will remain fixed at 90 Simpson

J & D Mfg. Confined Space Vent Tube, Model# VICSDUCT20

J & D Mfg. Confined Space Vent Tube, Model# VICSDUCT20

•  The 20in. dia. tube stretches out to 20 feet and compacts to about 18in.
• Made out of flame-retardant fabric thermally sealed to an ASTM-approved helical wire
• One end fan can be purchased separately (Item# 517516) or together with tube (Item# 517518)

When combined with Item# 517516, Confined Space Vent Fan, this safety-yellow flexible ducting is designed to direct air to confined spaces such as manholes, crawl spaces, tanks and more. U.S.A. Accessory Type: Space ventilator accessory, Compatible With Item Number (s): 517516, Length (ft.): 20, Pipe Diameter (in.): 20, Material Type: Flame-retardant fabric

Fireside Chimney Supply FireFlex Smooth Wall Tee Chimney Liner Kit - 3in x 20ft

Fireside Chimney Supply FireFlex Smooth Wall Tee Chimney Liner Kit - 3in x 20ft

• Your FireFlex Chimney Liner Kit will include a FireFlex Smooth Wall 316Ti .013 thick stainless steel liner top plate with rain cap and tee connector with 10" snout and clean out cap for horizontal connections. The strongest liner on today's market!

Fireside Chimney Supply's FireFlex Chimney lining systems are made of 316Ti stainless steel and are used for all fuels. Our FireFlex 316Ti stainless steel chimney liner system is designed to reline existing chimneys or be used in new construction. Manufactured using the highest grade mill certified alloys. Manufactured with a continuous strip of stainless steel,interlocked and diagonally crimped to produce a gas and water tight system of superior strength. With 7 ply seams and 10 corrugations between each seam it will deliver the flexibility needed to get the job done. Sometimes when using the option of ovalizing the smooth wall liner it may have a puckered appearance. This will in no way affect the performance of the liner. Each FireFlex Kit includes our very own EZ connect system: Top plate or Flue fit top plate (optional) for the chimneys with the clay tile liner, both with EZ connect collars Rain Cap with screen to eliminate the pest 2 part stainless steel tee with removable snout

Dura-Vent Pellet Vent Fireplace 4 Inch Wall Thimble - 3 Inch Clearance

Dura-Vent Pellet Vent Fireplace 4 Inch Wall Thimble - 3 Inch Clearance

Dura-Vent Pellet Vent Fireplace 4 Inch Wall Thimble - 3 Inch Clearance is used to provide required 3 ft clearance to combustibles.

RCS RD Series HVAC Zone Dampers, 8" NC

RCS RD Series HVAC Zone Dampers, 8" NC

• RD Series Round Motorized Dampers
• Two Position
• Spring Return
• 2 Wire, 24vac
• NC Normally Closed

ROUND MOTORIZED ZONE DAMPERS BY RCS: RCS dampers feature a unique self sealing blade which produces a near 100% seal, unlike the old style, troublesome rubber gaskets. They are extra rigid. Installation is simple and fast, with no duct collars or sensitive special handling necessary. The asynchronous motor is a heavy duty, two wire model rated at 24VAC, 500mA.

Midwest Ducts Straight Starting Collar - 14 x 8 Inches

Midwest Ducts Straight Starting Collar - 14 x 8 Inches

• Straight start collar for ductwork assembly
• Comes with slips and drives to connect to rectangular duct

45 Straight starting collar. For starting rectangular ductwork.

Fireside Chimney Supply FireFlex 316 Premier Heavywall Chimney Liner - 4in x 15ft

Fireside Chimney Supply FireFlex 316 Premier Heavywall Chimney Liner - 4in x 15ft

• FireFlex 316 premier heavywall liner only .016 thick the thickest liner on the market - designed to reline existing chimneys or to be used in new construction.

Fireside Chimney Supply's FireFlex chimney lining systems are made of 316Ti stainless steel and are used for all fuels. Also, 304 stainless steel which is used for solid fuels such as wood, coal or pellets. Our FireFlex 316Ti stainless steel and 304 stainless steel chimney liner systems are designed to reline existing chimneys or to be used in new construction. Manufactured using the highest grade mill certified alloys. Manufactured with a continuous strip of stainless steel, interlocked and diagonally crimped to produce a gas and water tight system of superior strength. With 7 ply seams and 10 corrugations between each seam it will deliver the flexibility needed to get the job done. Fireside Chimney Supply offers a complete line of chimney lining and hearth products.

DuraVent 3pvp-rc Black Type L 3 Inch PelletVent Pro Reduction Collar

DuraVent 3pvp-rc Black Type L 3 Inch PelletVent Pro Reduction Collar

DuraVent 3pvp rc Type L Black PelletVent Pro Vent Pipe Increaser Reducer PelletVent Pro Collection 3 Inch PelletVent Pro Reduction CollarWarranty Notice: MandG DuraVent warranty applies to this professional grade product only when installed by a trained professional installer This 3 Inch PelletVent Pro Reduction Collar from the PelletVent Pro series is a Type B gas component and consists of the duralock system for a tight seal Reduces the center hole diameter in the Ceiling Support Wall Thimble Cover to fit 3Â" or 4Â" pipe Can be used as trim collar when penetrating a masonry chimney with PelletVent Pro Painted black Features:Fuel Type: BioFuel Oil PelletInner Diameter: 3"Height: 0 25"Double Wall ConstructionUL ListedAll PelletVent Pro components that come into contact with flue gases are built with an inner wall of corrosion resistant superferritic metal PelletVent Pro is engineered with features for a durable safe and aesthetically pleasing venting system PelletVent Pro is a patent

Metalbest 1604630 Stainless Steel / Galvanized Steel Painted Black Direct Vent Direct-Temp Masonry Chimney to 4" x 6-5/8" Direct Vent Conversion Kit

Metalbest 1604630 Stainless Steel / Galvanized Steel Painted Black Direct Vent Direct-Temp Masonry Chimney to 4" x 6-5/8" Direct Vent Conversion Kit

Metalbest 4DT MCK Direct Vent Stainless Steel Galvanized Steel Painted Black Direct Temp Vent Pipe Kit Masonry Chimney to 4" x 6 5 8" Direct Vent Conversion Kit from Direct TempConnect to a masonry Class A chimney using Selkrik aluminum flexi liner Kit includes chimney inlet adapter chimney outlet adapter and flashing Flexi liner sold separately Direct Temp system features stainless steel inner and heavy duty galvanized steel outer walls Heavy duty centering brackets keep inner pipe centered and chamfered edges allow for easy slide together assembly The free floating inner liner allows the pipe to expand and contract under high temperature without creating gaps or stress points The LockTab(r) is a unique design that allows for 360 rotation while securely locking the sections of pipe together with just a push of the tab Features:Siliconozed fiberglass sealLockTab securityPipe rotates easily to align system componentsNo sealant requiredHigh efficiency performanceConnection Specifications

DuraVent 7DF316-35KT Stainless Steel Flexible Liner 7 Inch x 35 Foot DuraFlex 316 Tee Kit-35KT ( Includes: DuraFlex SS Top Plate Cap Tee with Cap ) From the DuraFlexSS 316 Series

DuraVent 7DF316-35KT Stainless Steel Flexible Liner 7 Inch x 35 Foot DuraFlex 316 Tee Kit-35KT ( Includes: DuraFlex SS Top Plate Cap Tee with Cap ) From the DuraFlexSS 316 Series

DuraVent 7DF316 35KT Flexible Liner Stainless Steel DuraFlexSS 316 Vent Pipe Kit DuraFlexSS 316 Collection 7 Inch x 35 Foot DuraFlex 316 Tee Kit 35KT ( Includes: DuraFlex SS Top Plate Cap Tee with Cap )Warranty Notice: MandG DuraVent warranty applies to this professional grade product only when installed by a trained professional installer This DuraFlexSS 316 7 Inch x 35 Foot DuraFlex 316 Tee Kit 35KT ( Includes: DuraFlex SS Top Plate Cap Tee with Cap ) is the ultimate in flexible components for strength and flexibility The DuraFlex 316 tee kit includes a DuraFlex SS Top Plate DuraFlex SS Cap DuraFlex SS Tee with Cap and DuraFlex 316 35 foot length Features:Inner Diameter: 7"Fuel Types Compatible With: Wood Oil Coal Gas PelletUL Listed: YesLength: 420"Kit Includes: Top Plate Cap Tee with Cap Pipe LengthSingle Wall ConstructionLimited Lifetime WarrantyDuraFlex 316 is lighter more economical liners Excellent when there are minimal offsets in the chimney DuraFlex 316SS is intended for woo

Vent-A-Hood WS072 Stainless Steel 72" Two Fold Down Shelves 72" Warming Shelf Assembly Stainless Steel Backslash and Each Shelf is 10" Deep x 14" Wide WSO72

Vent-A-Hood WS072 Stainless Steel 72" Two Fold Down Shelves 72" Warming Shelf Assembly Stainless Steel Backslash and Each Shelf is 10" Deep x 14" Wide WSO72

72" Two Fold Down Shelves 72" Warming Shelf Assembly Stainless Steel Backslash and Each Shelf is 10" Deep x 14" WideComplete the installation of your Vent-A-Hood vent or replace a broken part with this accessory. The WSO72 has a Two fold down shelves and Mounted on 3. Why purchase Vent-A-Hood? Vent-A-Hood is the only ventilation manufacturer to provide grease extraction without messy, hard to clean filters. More efficient than filter type hoods, Vent-A-Hood offers the quietest hoods in the industry, quieter in your kitchen than a remote blower. Vent-A-Hood also offer fire-safe residential applications. The Vent-A-Hood Magic Lung blower is a patented way to remove bad smells and smoke from a home quickly and quietly. No matter the speed, the Magic Lung will be quiet even at higher speeds.Features:Two fold down shelvesMounted on 3.5" Deep LedgeEach Shelf is 10" Deep x 14" Wide15" High backsplash

Thomas & Betts TY3X3WPG6 Wiring Duct Wide Slot 3"x3" Rigid PVC Gray (6 Feet)

Thomas & Betts TY3X3WPG6 Wiring Duct Wide Slot 3"x3" Rigid PVC Gray (6 Feet)

• Thomas & Betts
• TY3X3WPG6
• Wiring Ducts
• Gray

Thomas & Betts TY3X3WPG6 Wiring Duct Wide Slot 3"x3" Rigid PVC Gray (6 Feet) From the earliest days of electrification over 100 years ago, Thomas & Betts has been a leader in providing products for commercial and industrial construction, industrial plant maintenance, repair and operation, electrical utility distribution, communications and original equipment manufacturing. They offer one of the broadest product lines in the electrical industry, supplying over 70 percent of the items used in a typical electrical application. Thomas & Betts TY3X3WPG6 Wiring Duct Wide Slot 3"x3" Rigid PVC Gray (6 Feet) Features: Style: Wide Slot Nominal Width (inches): 3 Nominal Height (inches): 3 Material: Rigid PVC Color: Gray Adhesive-Backed: No Mounting Holes: Yes Width (inches): 3.25 Height (inches): 3.14 A (inches): 3.25 B (inches): 3.14 C (inches): 3.25 D (inches): 3.06 E (inches): 0.3 F (inches): 2.31 G (inches): 0.38 H (inches): 0.1 I (inches): 1 RoHS Compliance 6 foot lengths

DuraVent W2-WBT12 Stainless Steel AL29-4C 12 Inch Double Wall Wide Mouth Boot Tee From the FasNSeal Series

DuraVent W2-WBT12 Stainless Steel AL29-4C 12 Inch Double Wall Wide Mouth Boot Tee From the FasNSeal Series

DuraVent W2 WBT12 AL29 4C Stainless Steel FasNSeal Vent Pipe Tee FasNSeal Collection 12 Inch Double Wall Wide Mouth Boot TeeWarranty Notice: MandG DuraVent warranty applies to this professional grade product only when installed by a trained professional installer This FasNSeal 12 Inch Double Wall Wide Mouth Boot Tee features a patented built in mechanical locking band and triple lipped directional gaskets which allows for ease of installation Use to transition from horizontal to vertical with improved flue gas flow with angled gradual transitions Can also be used as a manifold connection to gang boilers into a common vent Completely welded inner walls Features:Inner Diameter: 12"Fuel Types Compatible With: GasUL Listed: YesLength: 10 9"Double Wall ConstructionLimited Lifetime WarrantyAll FasNSeal single wall and double wall vent lengths and components feature patented built in mechanical locking band and triple lipped directional gaskets All pipes and components are engineered with smo

DuraVent 5DF316-20KT Stainless Steel DuraFlexSS 316 5 Inch x 20 Foot DuraFlex 316 Tee Kit-20KT ( Includes: DuraFlex SS Top Plate Cap Tee with Cap ) From the DuraFlexSS 316 Series

DuraVent 5DF316-20KT Stainless Steel DuraFlexSS 316 5 Inch x 20 Foot DuraFlex 316 Tee Kit-20KT ( Includes: DuraFlex SS Top Plate Cap Tee with Cap ) From the DuraFlexSS 316 Series

DuraVent 5DF316 20KT Flexible Liner Stainless Steel DuraFlexSS 316 Vent Pipe Kit DuraFlexSS 316 Collection 5 Inch x 20 Foot DuraFlex 316 Tee Kit 20KT ( Includes: DuraFlex SS Top Plate Cap Tee with Cap )Warranty Notice: MandG DuraVent warranty applies to this professional grade product only when installed by a trained professional installer This DuraFlexSS 316 5 Inch x 20 Foot DuraFlex 316 Tee Kit 20KT ( Includes: DuraFlex SS Top Plate Cap Tee with Cap ) is the ultimate in flexible components for strength and flexibility The DuraFlex 316 tee kit includes a DuraFlex SS Top Plate DuraFlex SS Cap DuraFlex SS Tee with Cap and DuraFlex 316 20 foot length Features:Inner Diameter: 5"Fuel Types Compatible With: Wood Oil Coal Gas PelletUL Listed: YesLength: 240"Kit Includes: Top Plate Cap Tee with Cap Pipe LengthSingle Wall ConstructionLimited Lifetime WarrantyDuraFlex 316 is lighter more economical liners Excellent when there are minimal offsets in the chimney DuraFlex 316SS is intended for woo

Deflecto A068/4 6"x8' Aluminum Flex Duct - Plain End

Deflecto A068/4 6"x8' Aluminum Flex Duct - Plain End

• Ship to United states only
• Average processing time 2-5 business days
• Average ship time 3 business days
• PID 079916424071

DEFLECTO A068/4 6''x8' ALUMINUM FLEX DUCT PLAIN END

DuraVent FSC10 Stainless Steel FasNSeal Storm Collar for 10 Inch FasNSeal Vent Pipe From the FasNSeal Series

DuraVent FSC10 Stainless Steel FasNSeal Storm Collar for 10 Inch FasNSeal Vent Pipe From the FasNSeal Series

DuraVent FSC10 AL29 4C Stainless Steel FasNSeal Vent Pipe Storm Collar FasNSeal Collection Storm Collar for 10 Inch FasNSeal Vent PipeWarranty Notice: MandG DuraVent warranty applies to this professional grade product only when installed by a trained professional installer This FasNSeal Storm Collar for 10 Inch FasNSeal Vent Pipe features a patented built in mechanical locking band and triple lipped directional gaskets which allows for ease of installation Use to create a weather tight seal between the pipe and flashing When installing FasNSeal W2 with this component use 1Â" larger diameter (e g 10Â" vent system use 11Â" size) Features:Inner Diameter: 10"Fuel Types Compatible With: GasUL Listed: YesLimited Lifetime WarrantyAll FasNSeal single wall and double wall vent lengths and components feature patented built in mechanical locking band and triple lipped directional gaskets All pipes and components are engineered with smooth clean welds located 90 from mechanical locking bands Th

Metalbest 107106 Galvanized RV RV 7" to 6" Type B Gas Vent Reduction Tee 7RV-T6

Metalbest 107106 Galvanized RV RV 7" to 6" Type B Gas Vent Reduction Tee 7RV-T6

7" to 6" Type B Gas Vent Reduction Tee from the RV CollectionA tee is used in conjunction with a vertical vent system to provide easy access for inspection and cleaning. The tee has a constant body size and smaller size side arm. This allows for reduction of the vent size to create more complex manifold installations.The RV series offers round gas vent pipe and fittings for residential, commercial and industrial applications. It features a snap together, non-positional lock system, die formed ends, and eliminates the need for all cutting, fitting and special engineering. It has an improved joint design provides for a rapid and secure connection in seconds. The use of our "LockTab" feature gives installers the option of engaging this tab instead of using sheet metal screws, when required by local code.Features:Residential and light commercial and industrialMaterials: Galvanized steel outer and aluminum inner linerEasy to use LockTab or non-positional lock systemFuel: GasUL 441 listedMin