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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.

40 Item(s)

Set Ascending Direction
  1. Z-Flex Z-Dens 6" Adaptor - Weil McLain Slim Fit (SF1000) 10" to 6" - Stainless Steel (2ZDWASF1006)

    Z-Flex Z-Dens 6" Adaptor - Weil McLain Slim Fit (SF1000) 10" to 6" - Stainless Steel (2ZDWASF1006)

    Z-Flex Z-Dens 6" Adaptor - Weil McLain Slim Fit (SF1000) 10" to 6" - Stainless Steel (2ZDWASF1006)

    Adaptor for Weil Mclain Learn More

    Regular Price: $241.94

    Special Price: $193.56

    Details
  2. 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
  3. 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
  4. 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
  5. 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
  6. Z-Flex Z-Dens 6" x 72" Polypropylene Vent Pipe - White (2ZDP672)

    Z-Flex Z-Dens 6" x 72" Polypropylene Vent Pipe - White (2ZDP672)

    Z-Flex Z-Dens 6" x 72" Polypropylene Vent Pipe - White (2ZDP672)

    Single Walled. Can be cut to length Learn More

    Regular Price: $211.22

    Special Price: $168.97

    Details
  7. 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
  8. 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
  9. 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
  10. 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
  11. Z-Flex Z-Dens 4" Concentric Termination Horizontal (2ZDCTH46)

    Z-Flex Z-Dens 4" Concentric Termination Horizontal (2ZDCTH46)

    Z-Flex Z-Dens 4" Concentric Termination Horizontal (2ZDCTH46)

    Single Walled. Terminates horizontal piping Learn More

    Regular Price: $204.27

    Special Price: $163.42

    Details
  12. Z-Flex Z-Dens 6" x 24" Polypropylene Vent Pipe - White (2ZDP824)

    Z-Flex Z-Dens 6" x 24" Polypropylene Vent Pipe - White (2ZDP824)

    Z-Flex Z-Dens 6" x 24" Polypropylene Vent Pipe - White (2ZDP824)

    Single Walled. Can be cut to length Learn More

    Regular Price: $203.21

    Special Price: $162.56

    Details
  13. 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
  14. 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
  15. Z-Flex Z-Dens 3" Low Profile Horizontal Kit - Stainless Steel (2ZDHKLP3)

    Z-Flex Z-Dens 3" Low Profile Horizontal Kit - Stainless Steel (2ZDHKLP3)

    Z-Flex Z-Dens 3" Low Profile Horizontal Kit - Stainless Steel (2ZDHKLP3)

    Single Walled. Low-profile alternative Learn More

    Regular Price: $197.86

    Special Price: $158.29

    Details
  16. Z-Flex Z-Dens 5" Eccentric Increaser - 5" to 4" - White (2ZDI56)

    Z-Flex Z-Dens 5" Eccentric Increaser - 5" to 4" - White (2ZDI56)

    Z-Flex Z-Dens 5" Eccentric Increaser - 5" to 4" - White (2ZDI56)

    Single Walled. Can be cut to length Learn More

    Regular Price: $194.87

    Special Price: $155.89

    Details
  17. 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
  18. Z-Flex Z-Dens 6" Concentric Reducer - 6" to 4" - White (2ZDR64)

    Z-Flex Z-Dens 6" Concentric Reducer - 6" to 4" - White (2ZDR64)

    Z-Flex Z-Dens 6" Concentric Reducer - 6" to 4" - White (2ZDR64)

    Single Walled. Can be cut to length Learn More

    Regular Price: $182.95

    Special Price: $146.36

    Details
  19. 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
  20. 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
  21. Z-Flex Z-Dens 6" Condensate Drain - White (2ZDCD6H)

    Z-Flex Z-Dens 6" Condensate Drain - White (2ZDCD6H)

    Z-Flex Z-Dens 6" Condensate Drain - White (2ZDCD6H)

    Single Walled. Can be cut to length. For condensation collection prevention Learn More

    Regular Price: $176.79

    Special Price: $141.43

    Details
  22. Z-Flex Z-Dens 6" Adaptor with Viton Gasket - Aerco Benchmark (BMK750/1000/1500) 6" to 6" - Stainless Steel (2ZDAABM06)

    Z-Flex Z-Dens 6" Adaptor with Viton Gasket - Aerco Benchmark (BMK750/1000/1500) 6" to 6" - Stainless Steel (2ZDAABM06)

    Z-Flex Z-Dens 6" Adaptor with Viton Gasket - Aerco Benchmark (BMK750/1000/1500) 6" to 6" - Stainless Steel (2ZDAABM06)

    Adaptor for Fulton Endura Learn More

    Regular Price: $175.34

    Special Price: $140.28

    Details
  23. Z-Flex Z-Dens 2" Low Profile Horizontal Kit - Stainless Steel (2ZDHKLP2)

    Z-Flex Z-Dens 2" Low Profile Horizontal Kit - Stainless Steel (2ZDHKLP2)

    Z-Flex Z-Dens 2" Low Profile Horizontal Kit - Stainless Steel (2ZDHKLP2)

    Single Walled. Low-profile alternative Learn More

    Regular Price: $174.11

    Special Price: $139.29

    Details
  24. Z-Flex Z-Dens 6" Termination Tee with Screen - Stainless Steel (2ZDTT8)

    Z-Flex Z-Dens 6" Termination Tee with Screen - Stainless Steel (2ZDTT8)

    Z-Flex Z-Dens 6" Termination Tee with Screen - Stainless Steel (2ZDTT8)

    Single Walled. For inner pipe protection Learn More

    Regular Price: $169.21

    Special Price: $135.37

    Details
  25. Z-Flex Z-Dens 3"/5" Concentric Roof Termination EXTENSION with Guy Support Bracket - 40 Inch (2ZDCRT3540)

    Z-Flex Z-Dens 3"/5" Concentric Roof Termination EXTENSION with Guy Support Bracket - 40 Inch (2ZDCRT3540)

    Z-Flex Z-Dens 3"/5" Concentric Roof Termination EXTENSION with Guy Support Bracket - 40 Inch (2ZDCRT3540)

    Concentric. For extended vertical piping Learn More

    Regular Price: $159.71

    Special Price: $127.77

    Details
  26. Z-Flex Z-Dens 4" Collinear to Concentric Adaptor (2ZDACLC4446)

    Z-Flex Z-Dens 4" Collinear to Concentric Adaptor (2ZDACLC4446)

    Z-Flex Z-Dens 4" Collinear to Concentric Adaptor (2ZDACLC4446)

    Single Walled. Can be cut to length Learn More

    Regular Price: $155.22

    Special Price: $124.18

    Details
  27. Z-Flex Z-Dens 3" Concentric Termination Vertical (2ZDCTV35)

    Z-Flex Z-Dens 3" Concentric Termination Vertical (2ZDCTV35)

    Z-Flex Z-Dens 3" Concentric Termination Vertical (2ZDCTV35)

    Single Walled. Terminates vertical piping Learn More

    Regular Price: $152.77

    Special Price: $122.21

    Details
  28. Z-Flex Z-Dens 2"/4" Concentric Roof Termination EXTENSION with Guy Support Bracket - 40 Inch (2ZDCRT2440)

    Z-Flex Z-Dens 2"/4" Concentric Roof Termination EXTENSION with Guy Support Bracket - 40 Inch (2ZDCRT2440)

    Z-Flex Z-Dens 2"/4" Concentric Roof Termination EXTENSION with Guy Support Bracket - 40 Inch (2ZDCRT2440)

    Concentric. For extended vertical piping Learn More

    Regular Price: $149.27

    Special Price: $119.42

    Details
  29. Z-Flex Z-Dens 2" Concentric Termination Vertical (2ZDCTV24)

    Z-Flex Z-Dens 2" Concentric Termination Vertical (2ZDCTV24)

    Z-Flex Z-Dens 2" Concentric Termination Vertical (2ZDCTV24)

    Single Walled. Terminates vertical piping Learn More

    Regular Price: $149.27

    Special Price: $119.42

    Details
  30. Z-Flex Z-Dens 6" Termination Tee with Screen - Stainless Steel (2ZDTT6)

    Z-Flex Z-Dens 6" Termination Tee with Screen - Stainless Steel (2ZDTT6)

    Z-Flex Z-Dens 6" Termination Tee with Screen - Stainless Steel (2ZDTT6)

    Single Walled. For inner pipe protection Learn More

    Regular Price: $148.58

    Special Price: $118.86

    Details
  31. Z-Flex Z-Dens 5" Eccentric Increaser - 5" to 4" - White (2ZDI45)

    Z-Flex Z-Dens 5" Eccentric Increaser - 5" to 4" - White (2ZDI45)

    Z-Flex Z-Dens 5" Eccentric Increaser - 5" to 4" - White (2ZDI45)

    Single Walled. Can be cut to length Learn More

    Regular Price: $144.56

    Special Price: $115.64

    Details
  32. Z-Flex Z-Dens 2" Condensate Trap (2ZDCT)

    Z-Flex Z-Dens 2" Condensate Trap (2ZDCT)

    Z-Flex Z-Dens 2" Condensate Trap (2ZDCT)

    Single Walled. Can be cut to length. For condensation collection prevention Learn More

    Regular Price: $143.73

    Special Price: $114.99

    Details
  33. Z-Flex Z-Dens 2" Adjustable Flashing (Medium) (2ZDAFM2)

    Z-Flex Z-Dens 2" Adjustable Flashing (Medium) (2ZDAFM2)

    Z-Flex Z-Dens 2" Adjustable Flashing (Medium) (2ZDAFM2)

    Single Walled. For roof usage Learn More

    Regular Price: $143.73

    Special Price: $114.99

    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 6" Test Port - White (2ZDTP6)

    Z-Flex Z-Dens 6" Test Port - White (2ZDTP6)

    Z-Flex Z-Dens 6" Test Port - White (2ZDTP6)

    Single Walled. For gas analysis. Learn More

    Regular Price: $143.01

    Special Price: $114.41

    Details
  36. Z-Flex Z-Dens 2" Adjustable Flashing (Small) (2ZDAF2)

    Z-Flex Z-Dens 2" Adjustable Flashing (Small) (2ZDAF2)

    Z-Flex Z-Dens 2" Adjustable Flashing (Small) (2ZDAF2)

    Single Walled. For roof usage Learn More

    Regular Price: $138.83

    Special Price: $111.07

    Details
  37. 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
  38. Z-Flex Z-Dens 5" x 72" Polypropylene Vent Pipe - White (2ZDP572)

    Z-Flex Z-Dens 5" x 72" Polypropylene Vent Pipe - White (2ZDP572)

    Z-Flex Z-Dens 5" x 72" Polypropylene Vent Pipe - White (2ZDP572)

    Single Walled. Can be cut to length Learn More

    Regular Price: $133.26

    Special Price: $106.62

    Details
  39. Z-Flex Z-Dens 6" x 36" Polypropylene Vent Pipe - White (2ZDP636)

    Z-Flex Z-Dens 6" x 36" Polypropylene Vent Pipe - White (2ZDP636)

    Z-Flex Z-Dens 6" x 36" Polypropylene Vent Pipe - White (2ZDP636)

    Single Walled. Can be cut to length Learn More

    Regular Price: $128.39

    Special Price: $102.72

    Details
  40. Z-Flex Z-Dens 5" Condensate Drain - White (2ZDCD5H)

    Z-Flex Z-Dens 5" Condensate Drain - White (2ZDCD5H)

    Z-Flex Z-Dens 5" Condensate Drain - White (2ZDCD5H)

    Single Walled. Can be cut to length. For condensation collection prevention Learn More

    Regular Price: $128.04

    Special Price: $102.44

    Details

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