Huge Sale on Clearance Heaters & Greenstar Boilers!     FREE GROUND SHIPPING on all orders over $199!

 

Bosch Therm gas and propane tankless water heaters and Bosch Powerstream electric tankless water heaters.

Call Toll Free Number 1.866.289.4652 | Open 7 Days a Week

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.

49 Item(s)

Set Ascending Direction
  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 6" x 72" Polypropylene Vent Pipe - White (2ZDP872)

    Z-Flex Z-Dens 6" x 72" Polypropylene Vent Pipe - White (2ZDP872)

    Z-Flex Z-Dens 6" x 72" Polypropylene Vent Pipe - White (2ZDP872)

    Single Walled. Can be cut to length Learn More

    Regular Price: $414.76

    Special Price: $331.81

    Details
  17. Z-Flex Z-Dens 6" Round Chimney Cover (2ZDCC8)

    Z-Flex Z-Dens 6" Round Chimney Cover (2ZDCC8)

    Z-Flex Z-Dens 6" Round Chimney Cover (2ZDCC8)

    Single Walled. Covers vertical installation Learn More

    Regular Price: $405.71

    Special Price: $324.56

    Details
  18. Z-Flex Z-Dens 6" 87 Degree Elbow - White (2ZDE887)

    Z-Flex Z-Dens 6" 87 Degree Elbow - White (2ZDE887)

    Z-Flex Z-Dens 6" 87 Degree Elbow - White (2ZDE887)

    Single Walled. Can be cut to length Learn More

    Regular Price: $403.98

    Special Price: $323.18

    Details
  19. 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
  20. 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
  21. 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
  22. 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
  23. 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
  24. 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
  25. 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
  26. Z-Flex Z-Dens 6" Round Chimney Cover (2ZDCC6)

    Z-Flex Z-Dens 6" Round Chimney Cover (2ZDCC6)

    Z-Flex Z-Dens 6" Round Chimney Cover (2ZDCC6)

    Single Walled. Covers vertical installation Learn More

    Regular Price: $339.61

    Special Price: $271.69

    Details
  27. Z-Flex Z-Dens 6" Condensate Drain - White (2ZDCD8H)

    Z-Flex Z-Dens 6" Condensate Drain - White (2ZDCD8H)

    Z-Flex Z-Dens 6" Condensate Drain - White (2ZDCD8H)

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

    Regular Price: $337.88

    Special Price: $270.31

    Details
  28. Z-Flex Z-Dens 6" Eccentric Increaser - 6" to 8" - White (2ZDI68)

    Z-Flex Z-Dens 6" Eccentric Increaser - 6" to 8" - White (2ZDI68)

    Z-Flex Z-Dens 6" Eccentric Increaser - 6" to 8" - White (2ZDI68)

    Single Walled. Can be cut to length Learn More

    Regular Price: $325.71

    Special Price: $260.57

    Details
  29. Z-Flex Z-Dens 6" Concentric Reducer - 4" to 6" - White (2ZDR86)

    Z-Flex Z-Dens 6" Concentric Reducer - 4" to 6" - White (2ZDR86)

    Z-Flex Z-Dens 6" Concentric Reducer - 4" to 6" - White (2ZDR86)

    Single Walled. Can be cut to length Learn More

    Regular Price: $314.55

    Special Price: $251.64

    Details
  30. 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
  31. 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
  32. 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
  33. Z-Flex Z-Dens 6" x 36" Polypropylene Vent Pipe - White (2ZDP836)

    Z-Flex Z-Dens 6" x 36" Polypropylene Vent Pipe - White (2ZDP836)

    Z-Flex Z-Dens 6" x 36" Polypropylene Vent Pipe - White (2ZDP836)

    Single Walled. Can be cut to length Learn More

    Regular Price: $294.39

    Special Price: $235.51

    Details
  34. Z-Flex Z-Dens 6" 45 Degree Elbow - White (2ZDE845)

    Z-Flex Z-Dens 6" 45 Degree Elbow - White (2ZDE845)

    Z-Flex Z-Dens 6" 45 Degree Elbow - White (2ZDE845)

    Single Walled. Can be cut to length Learn More

    Regular Price: $294.39

    Special Price: $235.51

    Details
  35. Z-Flex Z-Dens 6" Test Port - White (2ZDTP8)

    Z-Flex Z-Dens 6" Test Port - White (2ZDTP8)

    Z-Flex Z-Dens 6" Test Port - White (2ZDTP8)

    Single Walled. For gas analysis. Learn More

    Regular Price: $288.10

    Special Price: $230.48

    Details
  36. 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
  37. 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
  38. 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
  39. 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
  40. 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
  41. 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
  42. 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
  43. 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
  44. Z-Flex Z-Dens 5" Round Chimney Cover (2ZDCC5)

    Z-Flex Z-Dens 5" Round Chimney Cover (2ZDCC5)

    Z-Flex Z-Dens 5" Round Chimney Cover (2ZDCC5)

    Single Walled. Covers vertical installation Learn More

    Regular Price: $251.22

    Special Price: $200.97

    Details
  45. 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
  46. 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
  47. 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
  48. 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
  49. 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

49 Item(s)

Set Ascending Direction
Shop Options
Shop By

Currently Shopping by:

  1. Remove This Item Price: $170.00 and above
  2. Remove This Item Venting Style: Z-Flex Z-Dens Polypropylene
Clear All
Application
  1. Commercial,Residential (49)
Color
  1. Black (6)
  2. White (15)
  3. Silver (28)
Material of Construction
  1. Polypropylene (49)
Product Sub Type
  1. Concentric (9)
  2. Flexible (24)
  3. Rigid (16)
Product Type
  1. Z-Dens 2" Single-Wall Venting (9)
  2. Z-Dens 2"/4" Concentric Vent (1)
  3. Z-Dens 3" Single-Wall Venting (10)
  4. Z-Dens 3"/5" Concentric Vent (1)
  5. Z-Dens 4" Single-Wall Venting (10)
  6. Z-Dens 4"/6" Concentric Vent (1)
  7. Z-Dens 5" Single-Wall Venting (2)
  8. Z-Dens 6" Single-Wall Venting (5)
  9. Z-Dens 8" Single-Wall Venting (10)
Venting Type
  1. Kits (20)
  2. Straight Pipes (3)
  3. Elbows (2)
  4. Condensation Drains (1)
  5. Adaptors (3)
  6. Increasers (1)
  7. Reducers (1)
  8. Terminations (3)
  9. Supports (15)
Newsletter
  • Global Pro Tankless Supply, Inc. BBB Business Review
  • website security
  • McAfee SECURE sites help keep you safe from identity theft, credit card fraud, spyware, spam, viruses and online scams
  • Pro Water Heater Supply accepts all major credit cards and supports Google Checkout and Paypal.
  • Pro Water Heater Supply ships daily via UPS and USPS from warehouses across the US.
  • Bosch Therm gas and propane tankless water heaters and Bosch Powerstream electric tankless water heaters.Pro Water Heater Supply is an Authorized Distributer for Bisch tankless water heaters
  • Pro Water Heater Supply is UpFront
  • Pro Water Heater Supply is an Authorized Distributor for Bosch tankless water heaters and Z-Flex stainless steel vent pipe.