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.

32 Item(s)

Set Descending Direction
  1. Z-Flex Z-Vent 20" Guy Band Stainless Steel Venting (2SVDGB20)

    Z-Flex Z-Vent 20" Guy Band (2SVDGB20)

    Z-Flex Z-Vent 20" Guy Band (2SVDGB20)

    Double Wall Stainless Steel, Category III Venting Learn More

    Regular Price: $60.75

    Special Price: $48.60

    Details
  2. Z-Flex Z-Vent 20" Firestop Spacer Stainless Steel Venting (2SVDFS20)

    Z-Flex Z-Vent 20" Firestop Spacer (2SVDFS20)

    Z-Flex Z-Vent 20" Firestop Spacer (2SVDFS20)

    Double Wall Stainless Steel, Category III Venting Learn More

    Regular Price: $251.08

    Special Price: $200.86

    Details
  3. Z-Flex Z-Vent 20" Firestop with Support Stainless Steel Venting (2SVDFSS20)

    Z-Flex Z-Vent 20" Firestop with Support (2SVDFSS20)

    Z-Flex Z-Vent 20" Firestop with Support (2SVDFSS20)

    Double Wall Stainless Steel, Category III Venting Learn More

    Regular Price: $350.30

    Special Price: $280.24

    Details
  4. Z-Flex Z-Vent 20" Storm Collar Stainless Steel Venting (2SVDLS20)

    Z-Flex Z-Vent 20" Storm Collar (2SVDLS20)

    Z-Flex Z-Vent 20" Storm Collar (2SVDLS20)

    Double Wall Stainless Steel, Category III Venting Learn More

    Regular Price: $386.76

    Special Price: $309.41

    Details
  5. Z-Flex Z-Vent 20" Tee Cap Stainless Steel Venting (2SVDTC20)

    Z-Flex Z-Vent 20" Tee Cap (2SVDTC20)

    Z-Flex Z-Vent 20" Tee Cap (2SVDTC20)

    Double Wall Stainless Steel, Category III Venting Learn More

    Regular Price: $470.71

    Special Price: $376.57

    Details
  6. Z-Flex Z-Vent 20" Tee Cap with Drain Stainless Steel Venting (2SVDTCD20)

    Z-Flex Z-Vent 20" Tee Cap with Drain (2SVDTCD20)

    Z-Flex Z-Vent 20" Tee Cap with Drain (2SVDTCD20)

    Double Wall Stainless Steel, Category III Venting Learn More

    Regular Price: $494.25

    Special Price: $395.39

    Details
  7. Z-Flex Z-Vent 20" x 6" Stainless Steel Vent Pipe (2SVDP20.5)

    Z-Flex Z-Vent 20" x 6" Stainless Steel Vent Pipe (2SVDP20.5)

    Z-Flex Z-Vent 20" x 6" Stainless Steel Vent Pipe (2SVDP20.5)

    Double Walled. Can be cut to length Learn More

    Regular Price: $512.39

    Special Price: $409.92

    Details
  8. Z-Flex Z-Vent 20" Base Support Stainless Steel Venting (2SVDBS20)

    Z-Flex Z-Vent 20" Base Support (2SVDBS20)

    Z-Flex Z-Vent 20" Base Support (2SVDBS20)

    Double Wall Stainless Steel, Category III Venting Learn More

    Regular Price: $518.36

    Special Price: $414.69

    Details
  9. Z-Flex Z-Vent 20" Wall Thimble Stainless Steel Venting (2SVDWT20)

    Z-Flex Z-Vent 20" Wall Thimble (2SVDWT20)

    Z-Flex Z-Vent 20" Wall Thimble (2SVDWT20)

    Double Wall Stainless Steel, Category III Venting Learn More

    Regular Price: $571.01

    Special Price: $456.81

    Details
  10. Z-Flex Z-Vent 20" x 12" Stainless Steel Vent Pipe (2SVDP2001)

    Z-Flex Z-Vent 20" x 12" Stainless Steel Vent Pipe (2SVDP2001)

    Z-Flex Z-Vent 20" x 12" Stainless Steel Vent Pipe (2SVDP2001)

    Double Walled. Can be cut to length Learn More

    Regular Price: $617.26

    Special Price: $493.81

    Details
  11. Z-Flex Z-Vent 20" Termination Box Stainless Steel Venting (2SVDRTX20)

    Z-Flex Z-Vent 20" Termination Box (2SVDRTX20)

    Z-Flex Z-Vent 20" Termination Box (2SVDRTX20)

    Double Wall Stainless Steel, Category III Venting Learn More

    Regular Price: $643.91

    Special Price: $515.13

    Details
  12. Z-Flex Z-Vent 20" Flat Flashing Stainless Steel Venting (2SVDF20)

    Z-Flex Z-Vent 20" Flat Flashing (2SVDF20)

    Z-Flex Z-Vent 20" Flat Flashing (2SVDF20)

    Double Wall Stainless Steel, Category III Venting Learn More

    Regular Price: $690.48

    Special Price: $552.39

    Details
  13. Z-Flex Z-Vent 20" Flashing 0-30 Degrees Stainless Steel Venting (2SVDFA20)

    Z-Flex Z-Vent 20" Flashing 0-30 Degrees (2SVDFA20)

    Z-Flex Z-Vent 20" Flashing 0-30 Degrees (2SVDFA20)

    Double Wall Stainless Steel, Category III Venting Learn More

    Regular Price: $722.87

    Special Price: $578.29

    Details
  14. Z-Flex Z-Vent 20" Single Wall to Double Wall Adaptor (2SVDSA20)

    Z-Flex Z-Vent 20" Single Wall to Double Wall Adaptor (2SVDSA20)

    Z-Flex Z-Vent 20" Single Wall to Double Wall Adaptor (2SVDSA20)

    Double Wall Stainless Steel, Category III Venting Learn More

    Regular Price: $741.08

    Special Price: $592.87

    Details
  15. Z-Flex Z-Vent 20" Wall Support Stainless Steel Venting (2SVDWS20)

    Z-Flex Z-Vent 20" Wall Support (2SVDWS20)

    Z-Flex Z-Vent 20" Wall Support (2SVDWS20)

    Double Wall Stainless Steel, Category III Venting Learn More

    Regular Price: $771.47

    Special Price: $617.18

    Details
  16. Z-Flex Z-Vent 20" x 120" Stainless Steel Vent Pipe (2SVDP2001.5)

    Z-Flex Z-Vent 20" x 20" Stainless Steel Vent Pipe (2SVDP2001.5)

    Z-Flex Z-Vent 20" x 120" Stainless Steel Vent Pipe (2SVDP2001.5)

    Double Walled. Can be cut to length Learn More

    Regular Price: $900.89

    Special Price: $720.71

    Details
  17. Z-Flex Z-Vent 20" Low Resistance Rain Cap Stainless Steel Venting (2SVDRC20)

    Z-Flex Z-Vent 20" Low Resistance Rain Cap (2SVDRC20)

    Z-Flex Z-Vent 20" Low Resistance Rain Cap (2SVDRC20)

    Double Wall Stainless Steel, Category III Venting Learn More

    Regular Price: $931.43

    Special Price: $745.14

    Details
  18. Z-Flex Z-Vent 20" Rain Cap with Wind Band Stainless Steel Venting (2SVDRCX20)

    Z-Flex Z-Vent 20" Rain Cap with Wind Band (2SVDRCX20)

    Z-Flex Z-Vent 20" Rain Cap with Wind Band (2SVDRCX20)

    Double Wall Stainless Steel, Category III Venting Learn More

    Regular Price: $978.02

    Special Price: $782.41

    Details
  19. Z-Flex Z-Vent 20" Exit Cone - Vertical Termination Stainless Steel Venting (2SVDXITC20)

    Z-Flex Z-Vent 20" Exit Cone - Vertical Termination (2SVDXITC20)

    Z-Flex Z-Vent 20" Exit Cone - Vertical Termination (2SVDXITC20)

    Double Wall Stainless Steel, Category III Venting Learn More

    Regular Price: $990.70

    Special Price: $792.57

    Details
  20. Z-Flex Z-Vent 20" x 2' Stainless Steel Vent Pipe (2SVDP2002)

    Z-Flex Z-Vent 20" x 2' Stainless Steel Vent Pipe (2SVDP2002)

    Z-Flex Z-Vent 20" x 2' Stainless Steel Vent Pipe (2SVDP2002)

    Double Walled. Can be cut to length Learn More

    Regular Price: $1,065.35

    Special Price: $852.28

    Details
  21. Z-Flex Z-Vent 20" Stainless Steel Adjustable Vent Pipe (2SVDPA20)

    Z-Flex Z-Vent 20" Stainless Steel Adjustable Vent Pipe (2SVDPA20)

    Z-Flex Z-Vent 20" Stainless Steel Adjustable Vent Pipe (2SVDPA20)

    Adjusts from 11.20 Inches to 120 Inches Learn More

    Regular Price: $1,108.58

    Special Price: $886.87

    Details
  22. Z-Flex Z-Vent 20" x 45 Degree Elbow Stainless Steel Venting (2SVDE2045)

    Z-Flex Z-Vent 20" x 45 Degree Elbow Stainless Steel Venting (2SVDE2045)

    Z-Flex Z-Vent 20" x 45 Degree Elbow Stainless Steel Venting (2SVDE2045)

    Double Wall Stainless Steel, Category III Venting Learn More

    Regular Price: $1,166.86

    Special Price: $933.49

    Details
  23. Z-Flex Z-Vent 20" x 15 Degree Elbow Stainless Steel Venting (2SVDE2015)

    Z-Flex Z-Vent 20" x 15 Degree Elbow Stainless Steel Venting (2SVDE2015)

    Z-Flex Z-Vent 20" x 15 Degree Elbow Stainless Steel Venting (2SVDE2015)

    Double Wall Stainless Steel, Category III Venting Learn More

    Regular Price: $1,166.86

    Special Price: $933.49

    Details
  24. Z-Flex Z-Vent 20" x 30 Degree Elbow Stainless Steel Venting (2SVDE2030)

    Z-Flex Z-Vent 20" x 30 Degree Elbow Stainless Steel Venting (2SVDE2030)

    Z-Flex Z-Vent 20" x 30 Degree Elbow Stainless Steel Venting (2SVDE2030)

    Double Wall Stainless Steel, Category III Venting Learn More

    Regular Price: $1,166.86

    Special Price: $933.49

    Details
  25. Z-Flex Z-Vent 20" Inspection Port Length Stainless Steel Venting (2SVDPRT20.5)

    Z-Flex Z-Vent 20" Inspection Port Length (2SVDPRT20.5)

    Z-Flex Z-Vent 20" Inspection Port Length (2SVDPRT20.5)

    Double Wall Stainless Steel, Category III Venting Learn More

    Regular Price: $1,191.80

    Special Price: $953.44

    Details
  26. Z-Flex Z-Vent 20" x 90 Degree Elbow Stainless Steel Venting (2SVDE2090)

    Z-Flex Z-Vent 20" x 90 Degree Elbow Stainless Steel Venting (2SVDE2090)

    Z-Flex Z-Vent 20" x 90 Degree Elbow Stainless Steel Venting (2SVDE2090)

    Double Wall Stainless Steel, Category III Venting Learn More

    Regular Price: $1,370.74

    Special Price: $1,096.59

    Details
  27. Z-Flex Z-Vent 20" x 3' Stainless Steel Vent Pipe (2SVDP2003)

    Z-Flex Z-Vent 20" x 3' Stainless Steel Vent Pipe (2SVDP2003)

    Z-Flex Z-Vent 20" x 3' Stainless Steel Vent Pipe (2SVDP2003)

    Double Walled. Can be cut to length Learn More

    Regular Price: $1,373.39

    Special Price: $1,098.71

    Details
  28. Z-Flex Z-Vent 20" Straight Tee (2SVDT20)

    Z-Flex Z-Vent 20" Straight Tee (2SVDT20)

    Z-Flex Z-Vent 20" Straight Tee (2SVDT20)

    Double Wall Stainless Steel, Category III Venting Learn More

    Regular Price: $1,512.43

    Special Price: $1,209.95

    Details
  29. Z-Flex Z-Vent 20" to 22" Eccentric Increaser Stainless Steel Venting (2SVDIE2022)

    Z-Flex Z-Vent 20" to 22" Eccentric Increaser (2SVDIE2022)

    Z-Flex Z-Vent 20" to 22" Eccentric Increaser (2SVDIE2022)

    Double Wall Stainless Steel, Category III Venting Learn More

    Regular Price: $1,529.40

    Special Price: $1,223.52

    Details
  30. Z-Flex Z-Vent 20" to 22" Concentric Increaser Stainless Steel Venting (2SVDI2022)

    Z-Flex Z-Vent 20" to 22" Concentric Increaser (2SVDI2022)

    Z-Flex Z-Vent 20" to 22" Concentric Increaser (2SVDI2022)

    Double Wall Stainless Steel, Category III Venting Learn More

    Regular Price: $1,529.40

    Special Price: $1,223.52

    Details
  31. Z-Flex Z-Vent 20" Lateral 45 WYE Stainless Steel Venting (2SVDL2045)

    Z-Flex Z-Vent 20" Lateral 45 WYE (2SVDL2045)

    Z-Flex Z-Vent 20" Lateral 45 WYE (2SVDL2045)

    Double Wall Stainless Steel, Category III Venting Learn More

    Regular Price: $2,168.47

    Special Price: $1,734.78

    Details
  32. Z-Flex Z-Vent 20" Boot Tee Stainless Steel Venting (2SVDTBT20)

    Z-Flex Z-Vent 20" Boot Tee (2SVDTBT20)

    Z-Flex Z-Vent 20" Boot Tee (2SVDTBT20)

    Double Wall Stainless Steel, Category III Venting Learn More

    Regular Price: $2,168.47

    Special Price: $1,734.78

    Details

32 Item(s)

Set Descending Direction
Shop Options
Shop By

Currently Shopping by:

  1. Remove This Item Application: Commercial,Residential
  2. Remove This Item Color: Silver
  3. Remove This Item Product Sub Type: Rigid
  4. Remove This Item Product Type: Z-Vent 20" Double-Wall Vent
Clear All
Material of Construction
  1. Stainless Steel AL29-4C (32)
Price
  1. $0.00 - $999.99 (25)
  2. $1,000.00 and above (7)
Venting Style
  1. Z-Flex Z-Vent Dble-Wall SS (32)
Venting Type
  1. Straight Pipes (6)
  2. Elbows (4)
  3. Tees (3)
  4. Tee Caps (2)
  5. Adaptors (1)
  6. Increasers (2)
  7. Wall Thimbles (1)
  8. Terminations (2)
  9. Inspection Ports (1)
  10. Roof Flashings (2)
  11. Supports (6)
  12. Rain Caps (2)
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.