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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.

38 Item(s)

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  1. Z-Flex 5.5" x 50' All Fuel Stainless Steel Kit (2ZFLKIT05-550)

    Z-Flex 5.5" x 50' All Fuel Stainless Steel Kit (2ZFLKIT05-550)

    Z-Flex 5.5" x 50' All Fuel Stainless Steel Kit (2ZFLKIT05-550)

    For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $1,969.56

    Special Price: $1,575.65

    Details
  2. Z-Flex 5.5" x 50' Z-Max Oil, Gas, & Pellet Kit (2OILKTX05-550)

    Z-Flex 5.5" x 50' Z-Max Oil, Gas, & Pellet Kit (2OILKTX05-550)

    Z-Flex 5.5" x 50' Z-Max Oil, Gas, & Pellet Kit (2OILKTX05-550)

    For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $1,820.74

    Special Price: $1,456.59

    Details
  3. Z-Flex 5.5" x 45' All Fuel Stainless Steel Kit (2ZFLKIT05-545)

    Z-Flex 5.5" x 45' All Fuel Stainless Steel Kit (2ZFLKIT05-545)

    Z-Flex 5.5" x 45' All Fuel Stainless Steel Kit (2ZFLKIT05-545)

    For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $1,783.81

    Special Price: $1,427.05

    Details
  4. Z-Flex 5.5" x 45' Z-Max Oil, Gas, & Pellet Kit (2OILKTX05-545)

    Z-Flex 5.5" x 45' Z-Max Oil, Gas, & Pellet Kit (2OILKTX05-545)

    Z-Flex 5.5" x 45' Z-Max Oil, Gas, & Pellet Kit (2OILKTX05-545)

    For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $1,646.00

    Special Price: $1,316.80

    Details
  5. Z-Flex 5.5" x 40' All Fuel Stainless Steel Kit (2ZFLKIT05-540)

    Z-Flex 5.5" x 40' All Fuel Stainless Steel Kit (2ZFLKIT05-540)

    Z-Flex 5.5" x 40' All Fuel Stainless Steel Kit (2ZFLKIT05-540)

    For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $1,599.71

    Special Price: $1,279.77

    Details
  6. Z-Flex 5.5" x 40' Z-Max Oil, Gas, & Pellet Kit (2OILKTX05-540)

    Z-Flex 5.5" x 40' Z-Max Oil, Gas, & Pellet Kit (2OILKTX05-540)

    Z-Flex 5.5" x 40' Z-Max Oil, Gas, & Pellet Kit (2OILKTX05-540)

    For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $1,471.23

    Special Price: $1,176.98

    Details
  7. Z-Flex 5.5" x 35' All Fuel Stainless Steel Kit (2ZFLKIT05-535)

    Z-Flex 5.5" x 35' All Fuel Stainless Steel Kit (2ZFLKIT05-535)

    Z-Flex 5.5" x 35' All Fuel Stainless Steel Kit (2ZFLKIT05-535)

    For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $1,413.98

    Special Price: $1,131.19

    Details
  8. Z-Flex 5.5" x 35' Z-Max Oil, Gas, & Pellet Kit (2OILKTX05-535)

    Z-Flex 5.5" x 35' Z-Max Oil, Gas, & Pellet Kit (2OILKTX05-535)

    Z-Flex 5.5" x 35' Z-Max Oil, Gas, & Pellet Kit (2OILKTX05-535)

    For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $1,296.79

    Special Price: $1,037.43

    Details
  9. Z-Flex 5.5" x 30' All Fuel Stainless Steel Kit (2ZFLKIT05-530)

    Z-Flex 5.5" x 30' All Fuel Stainless Steel Kit (2ZFLKIT05-530)

    Z-Flex 5.5" x 30' All Fuel Stainless Steel Kit (2ZFLKIT05-530)

    For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $1,229.09

    Special Price: $983.26

    Details
  10. Z-Flex 5.5" x 30' Z-Max Oil, Gas, & Pellet Kit (2OILKTX05-530)

    Z-Flex 5.5" x 30' Z-Max Oil, Gas, & Pellet Kit (2OILKTX05-530)

    Z-Flex 5.5" x 30' Z-Max Oil, Gas, & Pellet Kit (2OILKTX05-530)

    For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $1,120.46

    Special Price: $896.37

    Details
  11. Z-Flex 5.5" x 25' All Fuel Stainless Steel Kit (2ZFLKIT05-525)

    Z-Flex 5.5" x 25' All Fuel Stainless Steel Kit (2ZFLKIT05-525)

    Z-Flex 5.5" x 25' All Fuel Stainless Steel Kit (2ZFLKIT05-525)

    For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $1,043.84

    Special Price: $835.07

    Details
  12. Z-Flex 5.5" x 25' Z-Max Oil, Gas, & Pellet Kit (2OILKTX05-525)

    Z-Flex 5.5" x 25' Z-Max Oil, Gas, & Pellet Kit (2OILKTX05-525)

    Z-Flex 5.5" x 25' Z-Max Oil, Gas, & Pellet Kit (2OILKTX05-525)

    For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $947.12

    Special Price: $757.69

    Details
  13. Z-Flex 5.5" x 50' Aluminum 2-Ply Chimney Liner Kit (2GACKIT05.550)

    Z-Flex 5.5" x 50' Aluminum 2-Ply Chimney Liner Kit (2GACKIT05.550)

    Z-Flex 5.5" x 50' Aluminum 2-Ply Chimney Liner Kit (2GACKIT05.550)

    Aluminum Liner Length For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $763.12

    Special Price: $610.49

    Details
  14. Z-Flex 5.5" x 45' Aluminum 2-Ply Chimney Liner Kit (2GACKIT05.545)

    Z-Flex 5.5" x 45' Aluminum 2-Ply Chimney Liner Kit (2GACKIT05.545)

    Z-Flex 5.5" x 45' Aluminum 2-Ply Chimney Liner Kit (2GACKIT05.545)

    Aluminum Liner Length For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $738.32

    Special Price: $590.65

    Details
  15. Z-Flex 5.5" x 40' Aluminum 2-Ply Chimney Liner Kit (2GACKIT05.540)

    Z-Flex 5.5" x 40' Aluminum 2-Ply Chimney Liner Kit (2GACKIT05.540)

    Z-Flex 5.5" x 40' Aluminum 2-Ply Chimney Liner Kit (2GACKIT05.540)

    Aluminum Liner Length For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $712.10

    Special Price: $569.69

    Details
  16. Z-Flex 5.5" x 50' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX05.550)

    Z-Flex 5.5" x 50' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX05.550)

    Z-Flex 5.5" x 50' Length of Aluminum 2-Ply Liner (2GAXXXX05.550)

    Extra Aluminum Length For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $663.71

    Special Price: $530.97

    Details
  17. Z-Flex 5.5" x 45' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX05.545)

    Z-Flex 5.5" x 45' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX05.545)

    Z-Flex 5.5" x 45' Length of Aluminum 2-Ply Liner (2GAXXXX05.545)

    Extra Aluminum Length For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $408.66

    Special Price: $326.93

    Details
  18. Z-Flex 5.5" x 40' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX05.540)

    Z-Flex 5.5" x 40' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX05.540)

    Z-Flex 5.5" x 40' Length of Aluminum 2-Ply Liner (2GAXXXX05.540)

    Extra Aluminum Length For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $373.73

    Special Price: $298.99

    Details
  19. Z-Flex 5.5" x 35' Aluminum 2-Ply Chimney Liner Kit (2GACKIT05.535)

    Z-Flex 5.5" x 35' Aluminum 2-Ply Chimney Liner Kit (2GACKIT05.535)

    Z-Flex 5.5" x 35' Aluminum 2-Ply Chimney Liner Kit (2GACKIT05.535)

    Aluminum Liner Length For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $346.82

    Special Price: $277.45

    Details
  20. Z-Flex 5.5" x 30' Aluminum 2-Ply Chimney Liner Kit (2GACKIT05.530)

    Z-Flex 5.5" x 30' Aluminum 2-Ply Chimney Liner Kit (2GACKIT05.530)

    Z-Flex 5.5" x 30' Aluminum 2-Ply Chimney Liner Kit (2GACKIT05.530)

    Aluminum Liner Length For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $333.70

    Special Price: $266.96

    Details
  21. Z-Flex 5.5" x 35' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX05.535)

    Z-Flex 5.5" x 35' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX05.535)

    Z-Flex 5.5" x 35' Length of Aluminum 2-Ply Liner (2GAXXXX05.535)

    Extra Aluminum Length For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $302.89

    Special Price: $242.31

    Details
  22. Z-Flex 5.5" x 25' Aluminum 2-Ply Chimney Liner Kit (2GACKIT05.525)

    Z-Flex 5.5" x 25' Aluminum 2-Ply Chimney Liner Kit (2GACKIT05.525)

    Z-Flex 5.5" x 25' Aluminum 2-Ply Chimney Liner Kit (2GACKIT05.525)

    Aluminum Liner Length For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $287.09

    Special Price: $229.67

    Details
  23. Z-Flex 5.5" x 20' Aluminum 2-Ply Chimney Liner Kit (2GACKIT05.520)

    Z-Flex 5.5" x 20' Aluminum 2-Ply Chimney Liner Kit (2GACKIT05.520)

    Z-Flex 5.5" x 20' Aluminum 2-Ply Chimney Liner Kit (2GACKIT05.520)

    Aluminum Liner Length For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $275.32

    Special Price: $220.26

    Details
  24. Z-Flex 5.5" x 30' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX05.530)

    Z-Flex 5.5" x 30' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX05.530)

    Z-Flex 5.5" x 30' Length of Aluminum 2-Ply Liner (2GAXXXX05.530)

    Extra Aluminum Length For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $267.95

    Special Price: $214.36

    Details
  25. Z-Flex 5.5" x 25' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX05.525)

    Z-Flex 5.5" x 25' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX05.525)

    Z-Flex 5.5" x 25' Length of Aluminum 2-Ply Liner (2GAXXXX05.525)

    Extra Aluminum Length For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $233.02

    Special Price: $186.42

    Details
  26. Z-Flex 5.5" x 20' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX05.520)

    Z-Flex 5.5" x 20' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX05.520)

    Z-Flex 5.5" x 20' Length of Aluminum 2-Ply Liner (2GAXXXX05.520)

    Extra Aluminum Length For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $193.61

    Special Price: $154.89

    Details
  27. Z-Flex 5.5" x 15' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX05.515)

    Z-Flex 5.5" x 15' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX05.515)

    Z-Flex 5.5" x 15' Length of Aluminum 2-Ply Liner (2GAXXXX05.515)

    Extra Aluminum Length For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $127.24

    Special Price: $101.79

    Details
  28. Z-Flex 5.5" Z-Max Cap (2ZMRCS05.5)

    Z-Flex 5.5" Z-Max Cap (2ZMRCS05.5)

    Z-Flex 5.5" Stainless Steel Z-Max Cap (2ZMRCS05.5)

    For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $118.00

    Special Price: $94.40

    Details
  29. Z-Flex 5.5" Stainless Steel Deluxe Rain Cap (2RNCAPS05-5)

    Z-Flex 5.5" Stainless Steel Deluxe Rain Cap (2RNCAPS05-5)

    Z-Flex 5.5" Stainless Steel Deluxe Rain Cap (2RNCAPS05-5)

    For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $108.12

    Special Price: $86.49

    Details
  30. Z-Flex 5.5" Aluminum 2-Ply Chimney Liner Extension Kit (2GAEXT05.510)

    Z-Flex 5.5" Aluminum 2-Ply Extension Kit (2GAEXT05.510)

    Z-Flex 5.5" Aluminum 2-Ply Extension Kit (2GAEXT05.510)

    Aluminum Liner Extension For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $104.47

    Special Price: $83.58

    Details
  31. Z-Flex 5.5" x 10' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX05.510)

    Z-Flex 5.5" x 10' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX05.510)

    Z-Flex 5.5" x 10' Length of Aluminum 2-Ply Liner (2GAXXXX05.510)

    Extra Aluminum Length For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $92.31

    Special Price: $73.84

    Details
  32. Z-Flex 5.5" Z-Max Flashing (2AFCS05.5)

    Z-Flex 5.5" Z-Max Flashing (2AFCS05.5)

    Z-Flex 5.5" Stainless Steel Z-Max Flashing (2AFCS05.5)

    For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $79.15

    Special Price: $63.32

    Details
  33. Z-Flex 5.5" Stainless Steel Chimney Flashing (2ZSCSXX05.5)

    Z-Flex 5.5" Stainless Steel Chimney Flashing (2ZSCSXX05.5)

    Z-Flex 5.5" Stainless Steel Chimney Flashing (2ZSCSXX05.5)

    For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $79.15

    Special Price: $63.32

    Details
  34. Z-Flex 5.5" Nose Cone (2NCXXX05-5)

    Z-Flex 5.5" Nose Cone (2NCXXX05-5)

    Z-Flex 5.5" Nose Cone (2NCXXX05-5)

    For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $76.31

    Special Price: $61.05

    Details
  35. Z-Flex 5.5" Stainless Steel Drip-less Connector (2CNNTRC05.5)

    Z-Flex 5.5" Stainless Steel Drip-less Connector (2CNNTRC05.5)

    Z-Flex 5.5" Stainless Steel Drip-less Connector (2CNNTRC05.5)

    For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $60.34

    Special Price: $48.28

    Details
  36. Z-Flex 5.5" Stainless Steel Top Support (2ZTSXXX05-5)

    Z-Flex 5.5" Stainless Steel Top Support (2ZTSXXX05-5)

    Z-Flex 5.5" Stainless Steel Top Support (2ZTSXXX05-5)

    For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $59.01

    Special Price: $47.21

    Details
  37. Z-Flex 5.5" x 5' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX05.505)

    Z-Flex 5.5" x 5' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX05.505)

    Z-Flex 5.5" x 5' Length of Aluminum 2-Ply Liner (2GAXXXX05.505)

    Extra Aluminum Length For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $58.66

    Special Price: $46.93

    Details
  38. Z-Flex 5.5" Aluminum Chimney Liner Connector (2CNNTRG05.5)

    Z-Flex 5.5" Aluminum Chimney Liner Connector (2CNNTRG05.5)

    Z-Flex 5.5" Aluminum Liner Connector (2CNNTRG05.5)

    Aluminum Liner Connector For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $34.43

    Special Price: $27.54

    Details

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