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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.

53 Item(s)

Set Descending Direction
  1. Z-Flex Z-Dens 2" Flexible Spacer / Bracing Bracket (2ZDFS2)

    Z-Flex Z-Dens 2" Flexible Spacer / Bracing Bracket (2ZDFS2)

    Z-Flex Z-Dens 2" Flexible Spacer / Bracing Bracket (2ZDFS2)

    For use within chimney Learn More

    Regular Price: $34.43

    Special Price: $27.54

    Details
  2. Z-Flex Z-Dens 3" Flexible Spacer / Bracing Bracket (2ZDFS3)

    Z-Flex Z-Dens 3" Flexible Spacer / Bracing Bracket (2ZDFS3)

    Z-Flex Z-Dens 3" Flexible Spacer / Bracing Bracket (2ZDFS3)

    For use within chimney Learn More

    Regular Price: $34.82

    Special Price: $27.85

    Details
  3. Z-Flex Z-Dens 2" Flexible Ring (2ZDFR2)

    Z-Flex Z-Dens 2" Flexible Ring (2ZDFR2)

    Z-Flex Z-Dens 2" Flexible Ring (2ZDFR2)

    Single Walled. Learn More

    Regular Price: $45.63

    Special Price: $36.51

    Details
  4. Z-Flex Z-Dens 3" Flexible Ring (2ZDFR3)

    Z-Flex Z-Dens 3" Flexible Ring (2ZDFR3)

    Z-Flex Z-Dens 3" Flexible Ring (2ZDFR3)

    Single Walled. Learn More

    Regular Price: $48.45

    Special Price: $38.77

    Details
  5. Z-Flex Z-Dens 4" Flexible Ring (2ZDFR4)

    Z-Flex Z-Dens 4" Flexible Ring (2ZDFR4)

    Z-Flex Z-Dens 4" Flexible Ring (2ZDFR4)

    Single Walled. Learn More

    Regular Price: $49.55

    Special Price: $39.65

    Details
  6. Z-Flex Z-Dens 4" Flexible Spacer / Bracing Bracket (2ZDFS4)

    Z-Flex Z-Dens 4" Flexible Spacer / Bracing Bracket (2ZDFS4)

    Z-Flex Z-Dens 4" Flexible Spacer / Bracing Bracket (2ZDFS4)

    For use within chimney Learn More

    Regular Price: $52.47

    Special Price: $41.99

    Details
  7. Z-Flex Z-Dens 2" Flexible to Rigid Male Adaptor (2ZDFRA2)

    Z-Flex Z-Dens 2" Flexible to Rigid Male Adaptor (2ZDFRA2)

    Z-Flex Z-Dens 2" Flexible to Rigid Male Adaptor (2ZDFRA2)

    Single Walled. For conversion purposes Learn More

    Regular Price: $56.73

    Special Price: $45.38

    Details
  8. Z-Flex Z-Dens 3" Flexible to Rigid Male Adaptor (2ZDFRA3)

    Z-Flex Z-Dens 3" Flexible to Rigid Male Adaptor (2ZDFRA3)

    Z-Flex Z-Dens 3" Flexible to Rigid Male Adaptor (2ZDFRA3)

    Single Walled. For conversion purposes Learn More

    Regular Price: $57.04

    Special Price: $45.63

    Details
  9. Z-Flex Z-Dens 4" Flexible to Rigid Male Adaptor (2ZDFRA4)

    Z-Flex Z-Dens 4" Flexible to Rigid Male Adaptor (2ZDFRA4)

    Z-Flex Z-Dens 4" Flexible to Rigid Male Adaptor (2ZDFRA4)

    Single Walled. For conversion purposes Learn More

    Regular Price: $68.21

    Special Price: $54.57

    Details
  10. Z-Flex Z-Dens 2" Flexible Coupling (2ZDFC2)

    Z-Flex Z-Dens 2" Flexible Coupling (2ZDFC2)

    Z-Flex Z-Dens 2" Flexible Coupling (2ZDFC2)

    Single Walled. For connecting male ends Learn More

    Regular Price: $68.90

    Special Price: $55.12

    Details
  11. Z-Flex Z-Dens 3" Flexible Coupling (2ZDFC3)

    Z-Flex Z-Dens 3" Flexible Coupling (2ZDFC3)

    Z-Flex Z-Dens 3" Flexible Coupling (2ZDFC3)

    Single Walled. For connecting male ends Learn More

    Regular Price: $76.91

    Special Price: $61.54

    Details
  12. Z-Flex Z-Dens 2" Flexible Installation Tool (2ZDFIT2)

    Z-Flex Z-Dens 2" Flexible Installation Tool (2ZDFIT2)

    Z-Flex Z-Dens 2" Flexible Installation Tool (2ZDFIT2)

    Single Walled. For vertical/horizontal installation Learn More

    Regular Price: $86.95

    Special Price: $69.55

    Details
  13. Z-Flex Z-Dens 2" Round Chimney Cover (2ZDRCC2)

    Z-Flex Z-Dens 2" Round Chimney Cover (2ZDRCC2)

    Z-Flex Z-Dens 2" Round Chimney Cover (2ZDRCC2)

    Single Walled. Covers vertical installation Learn More

    Regular Price: $91.13

    Special Price: $72.90

    Details
  14. Z-Flex Z-Dens 3" Round Chimney Cover (2ZDRCC3)

    Z-Flex Z-Dens 3" Round Chimney Cover (2ZDRCC3)

    Z-Flex Z-Dens 3" Round Chimney Cover (2ZDRCC3)

    Single Walled. Covers vertical installation Learn More

    Regular Price: $91.13

    Special Price: $72.90

    Details
  15. Z-Flex Z-Dens 4" Flexible Coupling (2ZDFC4)

    Z-Flex Z-Dens 4" Flexible Coupling (2ZDFC4)

    Z-Flex Z-Dens 4" Flexible Coupling (2ZDFC4)

    Single Walled. For connecting male ends Learn More

    Regular Price: $93.27

    Special Price: $74.61

    Details
  16. 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
  17. Z-Flex Z-Dens 2" Female to Flexible Rigid Adaptor (2ZDFFA2)

    Z-Flex Z-Dens 2" Female to Flexible Rigid Adaptor (2ZDFFA2)

    Z-Flex Z-Dens 2" Female to Flexible Rigid Adaptor (2ZDFFA2)

    Single Walled. For conversion purposes Learn More

    Regular Price: $105.72

    Special Price: $84.57

    Details
  18. Z-Flex Z-Dens 3" Female to Flexible Rigid Adaptor (2ZDFFA3)

    Z-Flex Z-Dens 3" Female to Flexible Rigid Adaptor (2ZDFFA3)

    Z-Flex Z-Dens 3" Female to Flexible Rigid Adaptor (2ZDFFA3)

    Single Walled. For conversion purposes Learn More

    Regular Price: $106.06

    Special Price: $84.85

    Details
  19. 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
  20. 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
  21. 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
  22. 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
  23. 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
  24. 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
  25. 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
  26. 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
  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 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
  29. 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
  30. 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
  31. 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
  32. 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
  33. 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
  34. 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
  35. 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
  36. 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
  37. 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
  38. 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
  39. 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
  40. 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
  41. 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
  42. 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
  43. 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
  44. 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
  45. 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
  46. 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
  47. 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
  48. 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
  49. 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
  50. 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
  51. 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
  52. 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
  53. 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

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