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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 4" x 45' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0445)

    Z-Flex 4" x 45' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0445)

    Z-Flex 4" x 45' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0445)

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

    Regular Price: $377.04

    Special Price: $301.63

    Details
  2. Z-Flex 5" x 40' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0540)

    Z-Flex 5" x 40' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0540)

    Z-Flex 5" x 40' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0540)

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

    Regular Price: $384.45

    Special Price: $307.56

    Details
  3. Z-Flex Z-Dens 4" Concentric Horizontal Kit (2ZDHK4)

    Z-Flex Z-Dens 4" Concentric Horizontal Kit (2ZDHK4)

    Z-Flex Z-Dens 4" Concentric Horizontal Kit (2ZDHK4)

    Single Walled. For horizontal piping Learn More

    Regular Price: $392.44

    Special Price: $313.95

    Details
  4. Z-Flex 4" x 50' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0450)

    Z-Flex 4" x 50' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0450)

    Z-Flex 4" x 50' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0450)

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

    Regular Price: $404.46

    Special Price: $323.56

    Details
  5. Z-Flex 7" x 6' Double Wall Oil Vent Connector Kit (2OVIKIT0706)

    Z-Flex 7" x 6' Double Wall Oil Vent Connector Kit (2OVIKIT0706)

    Z-Flex 7" x 6' Double Wall Oil Vent Connector Kit (2OVIKIT0706)

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

    Regular Price: $416.90

    Special Price: $333.51

    Details
  6. Z-Flex 6" x 9' Single Wall Oil Vent Connector Kit (2OVSKIT0609)

    Z-Flex 6" x 9' Single Wall Oil Vent Connector Kit (2OVSKIT0609)

    Z-Flex 6" x 9' Single Wall Oil Vent Connector Kit (2OVSKIT0609)

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

    Regular Price: $424.33

    Special Price: $339.47

    Details
  7. Z-Flex 3" x 18' Single Wall Oil Vent Connector Kit (2OVSKIT0318)

    Z-Flex 3" x 18' Single Wall Oil Vent Connector Kit (2OVSKIT0318)

    Z-Flex 3" x 18' Single Wall Oil Vent Connector Kit (2OVSKIT0318)

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

    Regular Price: $435.06

    Special Price: $348.05

    Details
  8. Z-Flex 7" x 25' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0725)

    Z-Flex 7" x 25' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0725)

    Z-Flex 7" x 25' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0725)

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

    Regular Price: $435.21

    Special Price: $348.16

    Details
  9. Z-Flex Z-Dens 2" Concentric Horizontal Kit (2ZDHK2)

    Z-Flex Z-Dens 2" Concentric Horizontal Kit (2ZDHK2)

    Z-Flex Z-Dens 2" Concentric Horizontal Kit (2ZDHK2)

    Single Walled. For horizontal piping Learn More

    Regular Price: $445.22

    Special Price: $350.75

    Details
  10. Z-Flex 8" x 6' Double Wall Oil Vent Connector Kit (2OVIKIT0806)

    Z-Flex 8" x 6' Double Wall Oil Vent Connector Kit (2OVIKIT0806)

    Z-Flex 8" x 6' Double Wall Oil Vent Connector Kit (2OVIKIT0806)

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

    Regular Price: $439.48

    Special Price: $351.59

    Details

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Application
  1. Commercial,Residential (17)
Material of Construction
  1. Aluminum (15)
  2. Polypropylene (2)
Product Sub Type
  1. Concentric (2)
  2. Flexible (15)
Product Type
  1. Z-Dens 2" Single-Wall Venting (1)
  2. Z-Dens 4" Single-Wall Venting (1)
  3. Z-Flex 3" Chimney Liner (2)
  4. Z-Flex 4" Chimney Liner (4)
  5. Z-Flex 5" Chimney Liner (3)
  6. Z-Flex 6" Chimney Liner (1)
  7. Z-Flex 7" Chimney Liner (3)
  8. Z-Flex 8" Chimney Liner (2)
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