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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.

26 Item(s)

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  1. Z-Flex Z-Dens 4" Flexible Liner (2ZDFL824)

    Z-Flex Z-Dens 4" Flexible Liner (2ZDFL824)

    Z-Flex Z-Dens 4" Flexible Liner (2ZDFL824)

    Single Walled. Can be cut to length Learn More

    Regular Price: $1,850.74

    Special Price: $1,480.60

    Details
  2. Z-Flex Z-Dens 4" x 35' Chimney Flexible Kit (2ZDFK435)

    Z-Flex Z-Dens 4" x 35' Chimney Flexible Kit (2ZDFK435)

    Z-Flex Z-Dens 4" x 35' Chimney Flexible Kit (2ZDFK435)

    For vertical installations Learn More

    Regular Price: $1,429.73

    Special Price: $1,143.78

    Details
  3. Z-Flex Z-Dens 4" x 25' Chimney Flexible Kit (2ZDFK425)

    Z-Flex Z-Dens 4" x 25' Chimney Flexible Kit (2ZDFK425)

    Z-Flex Z-Dens 4" x 25' Chimney Flexible Kit (2ZDFK425)

    For vertical installations Learn More

    Regular Price: $1,204.07

    Special Price: $963.26

    Details
  4. Z-Flex Z-Dens 3" Flexible Liner (2ZDFL823)

    Z-Flex Z-Dens 3" Flexible Liner (2ZDFL823)

    Z-Flex Z-Dens 3" Flexible Liner (2ZDFL823)

    Single Walled. Can be cut to length Learn More

    Regular Price: $1,056.56

    Special Price: $845.25

    Details
  5. Z-Flex Z-Dens 3" x 35' Chimney Flexible Kit (2ZDFK335)

    Z-Flex Z-Dens 3" x 35' Chimney Flexible Kit (2ZDFK335)

    Z-Flex Z-Dens 3" x 35' Chimney Flexible Kit (2ZDFK335)

    For vertical installations Learn More

    Regular Price: $957.70

    Special Price: $766.16

    Details
  6. Z-Flex Z-Dens 4" Flexible Liner (2ZDFL494)

    Z-Flex Z-Dens 4" Flexible Liner (2ZDFL494)

    Z-Flex Z-Dens 4" Flexible Liner (2ZDFL494)

    Single Walled. Can be cut to length Learn More

    Regular Price: $925.37

    Special Price: $740.30

    Details
  7. Z-Flex Z-Dens 3" x 25' Chimney Flexible Kit (2ZDFK325)

    Z-Flex Z-Dens 3" x 25' Chimney Flexible Kit (2ZDFK325)

    Z-Flex Z-Dens 3" x 25' Chimney Flexible Kit (2ZDFK325)

    For vertical installations Learn More

    Regular Price: $828.46

    Special Price: $662.77

    Details
  8. Z-Flex Z-Dens 2" x 35' Chimney Flexible Kit (2ZDFK235)

    Z-Flex Z-Dens 2" x 35' Chimney Flexible Kit (2ZDFK235)

    Z-Flex Z-Dens 2" x 35' Chimney Flexible Kit (2ZDFK235)

    For vertical installations Learn More

    Regular Price: $788.27

    Special Price: $630.61

    Details
  9. Z-Flex Z-Dens 6" Roof Termination with Bracket PPs/Galvanised-Black (2ZDRT8)

    Z-Flex Z-Dens 6" Roof Termination with Bracket PPs/Galvanised-Black (2ZDRT8)

    Z-Flex Z-Dens 6" Roof Termination with Bracket PPs/Galvanised-Black (2ZDRT8)

    Single Walled. For vertical piping Learn More

    Regular Price: $710.19

    Special Price: $568.16

    Details
  10. Z-Flex Z-Dens 2" Flexible Liner (2ZDFL822)

    Z-Flex Z-Dens 2" Flexible Liner (2ZDFL822)

    Z-Flex Z-Dens 2" Flexible Liner (2ZDFL822)

    Single Walled. Can be cut to length Learn More

    Regular Price: $703.96

    Special Price: $563.18

    Details
  11. Z-Flex Z-Dens 2" x 25' Chimney Flexible Kit (2ZDFK225)

    Z-Flex Z-Dens 2" x 25' Chimney Flexible Kit (2ZDFK225)

    Z-Flex Z-Dens 2" x 25' Chimney Flexible Kit (2ZDFK225)

    For vertical installations Learn More

    Regular Price: $702.45

    Special Price: $561.97

    Details
  12. Z-Flex Z-Dens 3" Flexible Liner (2ZDFL413)

    Z-Flex Z-Dens 3" Flexible Liner (2ZDFL413)

    Z-Flex Z-Dens 3" Flexible Liner (2ZDFL413)

    Single Walled. Can be cut to length Learn More

    Regular Price: $528.29

    Special Price: $422.63

    Details
  13. Z-Flex Z-Dens 6" Roof Termination with Bracket PPs/Galvanised-Black (2ZDRT6)

    Z-Flex Z-Dens 6" Roof Termination with Bracket PPs/Galvanised-Black (2ZDRT6)

    Z-Flex Z-Dens 6" Roof Termination with Bracket PPs/Galvanised-Black (2ZDRT6)

    Single Walled. For vertical piping Learn More

    Regular Price: $502.81

    Special Price: $402.25

    Details
  14. Z-Flex Z-Dens 4" Concentric Vertical Kit (2ZDVK4)

    Z-Flex Z-Dens 4" Concentric Vertical Kit (2ZDVK4)

    Z-Flex Z-Dens 4" Concentric Vertical Kit (2ZDVK4)

    Single Walled. For vertical piping Learn More

    Regular Price: $500.04

    Special Price: $400.04

    Details
  15. 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
  16. 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
  17. Z-Flex Z-Dens 4"/6" Horizontal Termination Guard - Stainless Steel (2ZDTG6)

    Z-Flex Z-Dens 4"/6" Horizontal Termination Guard - Stainless Steel (2ZDTG6)

    Z-Flex Z-Dens 4"/6" Horizontal Termination Guard - Stainless Steel (2ZDTG6)

    For termination protection Learn More

    Regular Price: $370.05

    Special Price: $296.04

    Details
  18. Z-Flex Z-Dens 3"/5" Horizontal Termination Guard - Stainless Steel (2ZDTG5)

    Z-Flex Z-Dens 3"/5" Horizontal Termination Guard - Stainless Steel (2ZDTG5)

    Z-Flex Z-Dens 3"/5" Horizontal Termination Guard - Stainless Steel (2ZDTG5)

    For termination protection Learn More

    Regular Price: $370.05

    Special Price: $296.04

    Details
  19. Z-Flex Z-Dens 5" Roof Termination with Bracket PPs/Galvanised-Black (2ZDRT5)

    Z-Flex Z-Dens 5" Roof Termination with Bracket PPs/Galvanised-Black (2ZDRT5)

    Z-Flex Z-Dens 5" Roof Termination with Bracket PPs/Galvanised-Black (2ZDRT5)

    Single Walled. For vertical piping Learn More

    Regular Price: $368.47

    Special Price: $294.78

    Details
  20. Z-Flex Z-Dens 2" Flexible Liner (2ZDFL412)

    Z-Flex Z-Dens 2" Flexible Liner (2ZDFL412)

    Z-Flex Z-Dens 2" Flexible Liner (2ZDFL412)

    Single Walled. Can be cut to length Learn More

    Regular Price: $352.00

    Special Price: $281.60

    Details
  21. Z-Flex Z-Dens 4" Flexible Kit Extension (2ZDFKX4)

    Z-Flex Z-Dens 4" Flexible Kit Extension (2ZDFKX4)

    Z-Flex Z-Dens 4" Flexible Kit Extension (2ZDFKX4)

    For lengthening purposes Learn More

    Regular Price: $345.62

    Special Price: $276.49

    Details
  22. Z-Flex Z-Dens 4" Concentric Termination Vertical (2ZDCTV46)

    Z-Flex Z-Dens 4" Concentric Termination Vertical (2ZDCTV46)

    Z-Flex Z-Dens 4" Concentric Termination Vertical (2ZDCTV46)

    Single Walled. Terminates vertical piping Learn More

    Regular Price: $307.60

    Special Price: $246.08

    Details
  23. Z-Flex Z-Dens 2"/4" Horizontal Termination Guard - Stainless Steel (2ZDTG4)

    Z-Flex Z-Dens 2"/4" Horizontal Termination Guard - Stainless Steel (2ZDTG4)

    Z-Flex Z-Dens 2"/4" Horizontal Termination Guard - Stainless Steel (2ZDTG4)

    For termination protection Learn More

    Regular Price: $298.54

    Special Price: $238.83

    Details
  24. Z-Flex Z-Dens 3" Concentric Horizontal Kit (2ZDHK3)

    Z-Flex Z-Dens 3" Concentric Horizontal Kit (2ZDHK3)

    Z-Flex Z-Dens 3" Concentric Horizontal Kit (2ZDHK3)

    Single Walled. For horizontal piping Learn More

    Regular Price: $296.47

    Special Price: $237.18

    Details
  25. Z-Flex Z-Dens 6" Adaptor - Weil McLain Slim Fit (SF1000) 10" to 6" - Stainless Steel (2ZDWASF1008)

    Z-Flex Z-Dens 6" Adaptor - Weil McLain Slim Fit (SF1000) 10" to 6" - Stainless Steel (2ZDWASF1008)

    Z-Flex Z-Dens 6" Adaptor - Weil McLain Slim Fit (SF1000) 10" to 6" - Stainless Steel (2ZDWASF1008)

    Adaptor for Weil Mclain Learn More

    Regular Price: $285.12

    Special Price: $228.09

    Details
  26. Z-Flex Z-Dens 6" Adaptor with Viton Gasket - Aerco Benchmark (BMK750/1000/1500) 6" to 6" - Stainless Steel (2ZDAABM08)

    Z-Flex Z-Dens 6" Adaptor with Viton Gasket - Aerco Benchmark (BMK750/1000/1500) 6" to 6" - Stainless Steel (2ZDAABM08)

    Z-Flex Z-Dens 6" Adaptor with Viton Gasket - Aerco Benchmark (BMK750/1000/1500) 6" to 6" - Stainless Steel (2ZDAABM08)

    Adaptor for Fulton Endura Learn More

    Regular Price: $280.39

    Special Price: $224.32

    Details

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  1. Commercial,Residential (26)
Material of Construction
  1. Polypropylene (26)
Product Sub Type
  1. Concentric (8)
  2. Flexible (13)
  3. Rigid (5)
Product Type
  1. Z-Dens 2" Single-Wall Venting (5)
  2. Z-Dens 2"/4" Concentric Vent (1)
  3. Z-Dens 3" Single-Wall Venting (5)
  4. Z-Dens 3"/5" Concentric Vent (1)
  5. Z-Dens 4" Single-Wall Venting (8)
  6. Z-Dens 4"/6" Concentric Vent (1)
  7. Z-Dens 5" Single-Wall Venting (1)
  8. Z-Dens 6" Single-Wall Venting (1)
  9. Z-Dens 8" Single-Wall Venting (3)
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  3. Terminations (3)
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