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Bosch Therm gas and propane tankless water heaters and Bosch Powerstream electric tankless water heaters.

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Z-Flex

Z-Flex Z-Vent Stainless Steel Venting is the perfect choice for tankless water heaters and boilers. Z-Flex Z-Vent is rated AL29-4C and is approved for Category I (vertical only), II, III & IV applications and is designed for use with boilers, high efficiency gas and oil heaters and water heaters where cool flue gases are vented under pressure. Z-Vent contains a built-in, fail-safe gasket and locking band connection. No sealant is required.

Z-Flex Z-Dens Polypropylene vent pipe is ULC S636 certified for use with high efficiency condensing oil and gas fired heating appliances having flue gas temperatures up to 230°F (110°C). Specially developed, fire retardant Polypropylene. Cat II, IV Special Gas Vent. Gas Vent BH, Class IIc. Suitable for use with negative and positive pressure appliances.

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  1. Z-Flex 8" to 10" Stainless Steel Increaser (2IN8I10X)

    Z-Flex 8" to 10" Stainless Steel Increaser (2IN8I10X)

    Z-Flex 8" to 10" Stainless Steel Increaser (2IN8I10X)

    For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $98.81

    Special Price: $79.05

    Details
  2. Z-Flex 4" x 15' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0415)

    Z-Flex 4" x 15' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0415)

    Z-Flex 4" x 15' Length of Aluminum 2-Ply Liner (2GAXXXX0415)

    Extra Aluminum Length For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $98.81

    Special Price: $79.05

    Details
  3. Z-Flex Z-Dens 2" Collinear to Concentric Adaptor (2ZDACLC2224)

    Z-Flex Z-Dens 2" Collinear to Concentric Adaptor (2ZDACLC2224)

    Z-Flex Z-Dens 2" Collinear to Concentric Adaptor (2ZDACLC2224)

    Single Walled. Can be cut to length Learn More

    Regular Price: $98.81

    Special Price: $79.05

    Details
  4. Z-Flex Z-Dens 6" Concentric Adaptor (2ZDA6)

    Z-Flex Z-Dens 6" Concentric Adaptor (2ZDA6)

    Z-Flex Z-Dens 6" Concentric Adaptor (2ZDA6)

    Single Walled. Can be cut to length Learn More

    Regular Price: $98.56

    Special Price: $78.84

    Details
  5. Z-Flex Z-Vent 3" Wall Support Stainless Steel Venting (2SVSWS03)

    Z-Flex Z-Vent 3" Wall Support Stainless Steel Venting (2SVSWS03)

    Z-Flex Z-Vent 3" Wall Support Stainless Steel Venting (2SVSWS03) Learn More

    Regular Price: $98.51

    Special Price: $78.81

    Details
  6. Z-Flex Z-Vent 6" Firestop Spacer Stainless Steel Venting (2SVSFS06)

    Z-Flex Z-Vent 6" Firestop Spacer (2SVSFS06)

    Z-Flex Z-Vent 6" Firestop Spacer (2SVSFS06)

    Single Wall Stainless Steel, Category III Venting Learn More

    Regular Price: $98.47

    Special Price: $78.78

    Details
  7. Z-Flex 7" x 5' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0705)

    Z-Flex 7" x 5' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0705)

    Z-Flex 7" x 5' Length of Aluminum 2-Ply Liner (2GAXXXX0705)

    Extra Aluminum Length For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $98.43

    Special Price: $78.75

    Details
  8. Z-Flex Z-Dens 3" Flexible Installation Tool (2ZDFIT3)

    Z-Flex Z-Dens 3" Flexible Installation Tool (2ZDFIT3)

    Z-Flex Z-Dens 3" Flexible Installation Tool (2ZDFIT3)

    Single Walled. For vertical/horizontal installation Learn More

    Regular Price: $98.43

    Special Price: $78.74

    Details
  9. Z-Flex 4" x 9' Gas Single Vent Kit (2SVKXXX0409)

    Z-Flex 4" x 9' Gas Single Vent Kit (2SVKXXX0409)

    Z-Flex 4" x 9' Gas Single Vent Kit (2SVKXXX0409)

    Flexible Connector Length For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $98.22

    Special Price: $78.58

    Details
  10. Z-Flex 5" Aluminum 2-Ply Chimney Liner Extension Kit (2GAEXT0510)

    Z-Flex 5" Aluminum 2-Ply Extension Kit (2GAEXT0510)

    Z-Flex 5" Aluminum 2-Ply Extension Kit (2GAEXT0510)

    Aluminum Liner Extension For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $97.98

    Special Price: $78.38

    Details

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Application
  1. Commercial,Residential (84)
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  2. Grey (1)
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  4. Silver (75)
Material of Construction
  1. Aluminum (17)
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Product Type
  1. Z-Dens 2" Single-Wall Venting (5)
  2. Z-Dens 3" Single-Wall Venting (3)
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  14. Z-Flex 8" Chimney Liner (4)
  15. Z-Flex 9" Chimney Liner (1)
  16. Z-Flex 10" Chimney Liner (1)
  17. Z-Vent 3" Single-Wall Venting (10)
  18. Z-Vent 4" Single-Wall Venting (8)
  19. Z-Vent 5" Single-Wall Venting (2)
  20. Z-Vent 6" Single-Wall Venting (2)
  21. Z-Vent 7" Single-Wall Venting (2)
  22. Z-Vent 8" Single-Wall Venting (1)
  23. Z-Vent 14" Single-Wall Vent (1)
  24. Z-Vent 4" Double-Wall Vent (1)
  25. Z-Vent 5" Double-Wall Vent (1)
  26. Z-Vent 7" Double-Wall Vent (2)
  27. Z-Vent 8" Double-Wall Vent (1)
  28. Z-Vent 26" Double-Wall Vent (1)
Venting Style
  1. Z-Flex Chimney Liner (37)
  2. Z-Flex Z-Dens Polypropylene (15)
  3. Z-Flex Z-Vent Dble-Wall SS (6)
  4. Z-Flex Z-Vent Single-Wall SS (26)
Venting Type
  1. Kits (9)
  2. Straight Pipes (4)
  3. Elbows (5)
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  17. Chimney Liner Connectors (5)
  18. Intake Air Ducts (3)
  19. Chimney Liner Lengths (7)
  20. Decreasers (2)
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