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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.

35 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 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
  10. 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
  11. 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
  12. Z-Flex Z-Dens 4" Flexible Liner Kit (2ZD2FLK4)

    Z-Flex Z-Dens 4" Flexible Liner Kit (2ZD2FLK4)

    Z-Flex Z-Dens 4" Flexible Liner Kit (2ZD2FLK4)

    Single Walled. Can be cut to length Learn More

    Regular Price: $388.13

    Special Price: $310.50

    Details
  13. 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
  14. 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
  15. Z-Flex Z-Dens 3" Flexible Liner Kit (2ZD2FLK3)

    Z-Flex Z-Dens 3" Flexible Liner Kit (2ZD2FLK3)

    Z-Flex Z-Dens 3" Flexible Liner Kit (2ZD2FLK3)

    Single Walled. Can be cut to length Learn More

    Regular Price: $280.99

    Special Price: $224.80

    Details
  16. Z-Flex Z-Dens 3" Telescopic Flexible Ceiling Plate to Concentric - Ventilated Chimney Air (2ZDCPCT3)

    Z-Flex Z-Dens 3" Telescopic Flexible Ceiling Plate to Concentric - Ventilated Chimney Air (2ZDCPCT3)

    Z-Flex Z-Dens 3" Telescopic Flexible Ceiling Plate to Concentric - Ventilated Chimney Air (2ZDCPCT3)

    Single Walled. For conversion purposes Learn More

    Regular Price: $268.42

    Special Price: $214.74

    Details
  17. Z-Flex Z-Dens 2" Telescopic Flexible Ceiling Plate to Concentric - Ventilated Chimney Air (2ZDCPCT2)

    Z-Flex Z-Dens 2" Telescopic Flexible Ceiling Plate to Concentric - Ventilated Chimney Air (2ZDCPCT2)

    Z-Flex Z-Dens 2" Telescopic Flexible Ceiling Plate to Concentric - Ventilated Chimney Air (2ZDCPCT2)

    Single Walled. For conversion purposes Learn More

    Regular Price: $268.42

    Special Price: $214.74

    Details
  18. Z-Flex Z-Dens 2" Flexible Liner Kit (2ZD2FLK2)

    Z-Flex Z-Dens 2" Flexible Liner Kit (2ZD2FLK2)

    Z-Flex Z-Dens 2" Flexible Liner Kit (2ZD2FLK2)

    Single Walled. Can be cut to length Learn More

    Regular Price: $266.06

    Special Price: $212.84

    Details
  19. Z-Flex Z-Dens 3" Flexible Base to Collinear (2ZDFBCL3)

    Z-Flex Z-Dens 3" Flexible Base to Collinear (2ZDFBCL3)

    Z-Flex Z-Dens 3" Flexible Base to Collinear (2ZDFBCL3)

    Single Walled Learn More

    Regular Price: $255.37

    Special Price: $204.30

    Details
  20. Z-Flex Z-Dens 2" Flexible Base to Collinear (2ZDFBCL2)

    Z-Flex Z-Dens 2" Flexible Base to Collinear (2ZDFBCL2)

    Z-Flex Z-Dens 2" Flexible Base to Collinear (2ZDFBCL2)

    Single Walled Learn More

    Regular Price: $255.37

    Special Price: $204.30

    Details
  21. Z-Flex Z-Dens 4" Flexible Base Kit (2ZDFBK4)

    Z-Flex Z-Dens 4" Flexible Base Kit (2ZDFBK4)

    Z-Flex Z-Dens 4" Flexible Base Kit (2ZDFBK4)

    Single Walled Learn More

    Regular Price: $238.73

    Special Price: $190.99

    Details
  22. Z-Flex Z-Dens 3" Flexible Kit Extension (2ZDFKX3)

    Z-Flex Z-Dens 3" Flexible Kit Extension (2ZDFKX3)

    Z-Flex Z-Dens 3" Flexible Kit Extension (2ZDFKX3)

    For lengthening purposes Learn More

    Regular Price: $214.58

    Special Price: $171.67

    Details
  23. Z-Flex Z-Dens 2" Flexible Base to Concentric - Room Air (2ZDFBC2)

    Z-Flex Z-Dens 2" Flexible Base to Concentric - Room Air (2ZDFBC2)

    Z-Flex Z-Dens 2" Flexible Base to Concentric - Room Air (2ZDFBC2)

    Single Walled. For conversion purposes Learn More

    Regular Price: $212.98

    Special Price: $170.38

    Details
  24. Z-Flex Z-Dens 3" Flexible Base to Concentric - Room Air (2ZDFBC3)

    Z-Flex Z-Dens 3" Flexible Base to Concentric - Room Air (2ZDFBC3)

    Z-Flex Z-Dens 3" Flexible Base to Concentric - Room Air (2ZDFBC3)

    Single Walled. For conversion purposes Learn More

    Regular Price: $212.98

    Special Price: $170.38

    Details
  25. Z-Flex Z-Dens 2" Flexible Base to Concentric - Ventilated Chimney Air (2ZDFBC224)

    Z-Flex Z-Dens 2" Flexible Base to Concentric - Ventilated Chimney Air (2ZDFBC224)

    Z-Flex Z-Dens 2" Flexible Base to Concentric - Ventilated Chimney Air (2ZDFBC224)

    Single Walled. For conversion purposes Learn More

    Regular Price: $209.83

    Special Price: $167.87

    Details
  26. Z-Flex Z-Dens 3" Flexible Base to Concentric - Ventilated Chimney Air (2ZDFBC335)

    Z-Flex Z-Dens 3" Flexible Base to Concentric - Ventilated Chimney Air (2ZDFBC335)

    Z-Flex Z-Dens 3" Flexible Base to Concentric - Ventilated Chimney Air (2ZDFBC335)

    Single Walled. For conversion purposes Learn More

    Regular Price: $209.83

    Special Price: $167.87

    Details
  27. Z-Flex Z-Dens 2" Flexible Base Kit (2ZDFBK2)

    Z-Flex Z-Dens 2" Flexible Base Kit (2ZDFBK2)

    Z-Flex Z-Dens 2" Flexible Base Kit (2ZDFBK2)

    Single Walled Learn More

    Regular Price: $209.08

    Special Price: $167.27

    Details
  28. Z-Flex Z-Dens 3" Flexible Base Kit (2ZDFBK3)

    Z-Flex Z-Dens 3" Flexible Base Kit (2ZDFBK3)

    Z-Flex Z-Dens 3" Flexible Base Kit (2ZDFBK3)

    Single Walled Learn More

    Regular Price: $209.08

    Special Price: $167.27

    Details
  29. Z-Flex Z-Dens 2" Flexible Ceiling Plate to Concentric - Ventilated Chimney Air (2ZDCPC2)

    Z-Flex Z-Dens 2" Flexible Ceiling Plate to Concentric - Ventilated Chimney Air (2ZDCPC2)

    Z-Flex Z-Dens 2" Flexible Ceiling Plate to Concentric - Ventilated Chimney Air (2ZDCPC2)

    Single Walled. For conversion purposes Learn More

    Regular Price: $199.55

    Special Price: $159.64

    Details
  30. Z-Flex Z-Dens 3" Flexible Ceiling Plate to Concentric - Ventilated Chimney Air (2ZDCPC3)

    Z-Flex Z-Dens 3" Flexible Ceiling Plate to Concentric - Ventilated Chimney Air (2ZDCPC3)

    Z-Flex Z-Dens 3" Flexible Ceiling Plate to Concentric - Ventilated Chimney Air (2ZDCPC3)

    Single Walled. For conversion purposes Learn More

    Regular Price: $199.55

    Special Price: $159.64

    Details
  31. Z-Flex Z-Dens 2" Flexible Kit Extension (2ZDFKX2)

    Z-Flex Z-Dens 2" Flexible Kit Extension (2ZDFKX2)

    Z-Flex Z-Dens 2" Flexible Kit Extension (2ZDFKX2)

    For lengthening purposes Learn More

    Regular Price: $185.81

    Special Price: $148.65

    Details
  32. Z-Flex Z-Dens 2" Flexible Ceiling Plate (2ZDCPS2)

    Z-Flex Z-Dens 2" Flexible Ceiling Plate (2ZDCPS2)

    Z-Flex Z-Dens 2" Flexible Ceiling Plate (2ZDCPS2)

    Single Walled. Learn More

    Regular Price: $179.42

    Special Price: $143.54

    Details
  33. Z-Flex Z-Dens 3" Flexible Ceiling Plate (2ZDCPS3)

    Z-Flex Z-Dens 3" Flexible Ceiling Plate (2ZDCPS3)

    Z-Flex Z-Dens 3" Flexible Ceiling Plate (2ZDCPS3)

    Single Walled. Learn More

    Regular Price: $179.42

    Special Price: $143.54

    Details
  34. Z-Flex Z-Dens 4" Female to Flexible Rigid Adaptor (2ZDFFA4)

    Z-Flex Z-Dens 4" Female to Flexible Rigid Adaptor (2ZDFFA4)

    Z-Flex Z-Dens 4" Female to Flexible Rigid Adaptor (2ZDFFA4)

    Single Walled. For conversion purposes Learn More

    Regular Price: $143.65

    Special Price: $114.92

    Details
  35. Z-Flex Z-Dens 4" Flexible Installation Tool (2ZDFIT4)

    Z-Flex Z-Dens 4" Flexible Installation Tool (2ZDFIT4)

    Z-Flex Z-Dens 4" Flexible Installation Tool (2ZDFIT4)

    Single Walled. For vertical/horizontal installation Learn More

    Regular Price: $138.43

    Special Price: $110.73

    Details

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