Double-Wall Increasers
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- All-Fuel Chimneys
- 6-inch Diameter (2100°)
- Pipe
- Adjustable Snout Tees
- Offsets
- Ceiling Cover/Base Support
- Roof Support
- Wall (Tee) Support
- Wall Band
- Adjustable Pass-Thru Support
- Termination Cap
- Storm Collar
- Flashing
- Stove Pipe Adapter
- Firestop & Joist Shield
- Wall Thimble
- Weather Shield
- Face Plate
- Starter Section
- Attic Insulation Shield
- Masonry Anchor Plate with 1' Pipe
- Chase Kit
- Outside Wall Kit
- Roof Support Kit
- High Temperature Kit
- Housing Kits
- 8-inch Diameter (2100°)
- Pipe
- Adjustable Snout Tees
- Offsets
- Ceiling Cover/Base Support
- Roof Support
- Wall (Tee) Support
- Wall Band
- Adjustable Pass-Thru Support
- Termination Cap
- Storm Collar
- Flashing
- Stove Pipe Adapter
- Firestop & Joist Shield
- Wall Thimble
- Weather Shield
- Face Plate
- Starter Section
- Attic Insulation Shield
- Masonry Anchor Plate with 1' Pipe
- 7" to 8" All-Fuel Adapter
- Chase Kit
- Outside Wall Kit
- Roof Support Kit
- High Temperature Kit
- Housing Kits
- 10-inch Diameter (1700°)
- 6-inch Diameter (2100°)
- FlexJet Chimney Liners
- Flexible B-vent Connectors
- B-vent
- 3-inch Diameter
- 4-inch Diameter
- 5-inch Diameter
- 6-inch Diameter
- 7-inch Diameter
- 8-inch Diameter
- 10-inch Diameter
- 12-inch Diameter
- 14-inch Diameter
- 16-inch Diameter
- 18-inch Diameter
- 20-inch Diameter
- 22-inch Diameter
- 24-inch Diameter
- 26-inch Diameter
- 28-inch Diameter
- 30-inch Diameter
- 32-inch Diameter
- 34-inch Diameter
- 36-inch Diameter
- All-Fuel Chimneys
Product Categories
- All-Fuel Chimneys
- 6-inch Diameter (2100°)
- Pipe
- Adjustable Snout Tees
- Offsets
- Ceiling Cover/Base Support
- Roof Support
- Wall (Tee) Support
- Wall Band
- Adjustable Pass-Thru Support
- Termination Cap
- Storm Collar
- Flashing
- Stove Pipe Adapter
- Firestop & Joist Shield
- Wall Thimble
- Weather Shield
- Face Plate
- Starter Section
- Attic Insulation Shield
- Masonry Anchor Plate with 1' Pipe
- Chase Kit
- Outside Wall Kit
- Roof Support Kit
- High Temperature Kit
- Housing Kits
- 8-inch Diameter (2100°)
- Pipe
- Adjustable Snout Tees
- Offsets
- Ceiling Cover/Base Support
- Roof Support
- Wall (Tee) Support
- Wall Band
- Adjustable Pass-Thru Support
- Termination Cap
- Storm Collar
- Flashing
- Stove Pipe Adapter
- Firestop & Joist Shield
- Wall Thimble
- Weather Shield
- Face Plate
- Starter Section
- Attic Insulation Shield
- Masonry Anchor Plate with 1' Pipe
- 7" to 8" All-Fuel Adapter
- Chase Kit
- Outside Wall Kit
- Roof Support Kit
- High Temperature Kit
- Housing Kits
- 10-inch Diameter (1700°)
- 6-inch Diameter (2100°)
- FlexJet Chimney Liners
- Flexible B-vent Connectors
- B-vent
- 3-inch Diameter
- 4-inch Diameter
- 5-inch Diameter
- 6-inch Diameter
- 7-inch Diameter
- 8-inch Diameter
- 10-inch Diameter
- 12-inch Diameter
- 14-inch Diameter
- 16-inch Diameter
- 18-inch Diameter
- 20-inch Diameter
- 22-inch Diameter
- 24-inch Diameter
- 26-inch Diameter
- 28-inch Diameter
- 30-inch Diameter
- 32-inch Diameter
- 34-inch Diameter
- 36-inch Diameter
- All-Fuel Chimneys
Double-Wall Increasers
18-inch Diameter
Double-Wall Increasers
- For gas-fueled appliance venting
- UL Listed 441 (470°)
- Double-wall; air insulated
- Alumiunum inner; galvanized steel outer
- Snap-Lock™ Design
- Made in the U.S.A.
| Part # | Description | Ctn Qty | List Price/Each |
| 18x20 | DW Increaser, 18" to 20" | 1 | -- |
| 18x22 | DW Increaser, 18" to 22" | 1 | -- |
| 18x24 | DW Increaser, 18" to 24" | 1 | -- |
| 18x32 | DW Increaser, 18" to 32" | 1 | -- |
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