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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.

44 Item(s)

Set Descending Direction
  1. Z-Flex 5" x 18' Double Wall Oil Vent Connector Kit (2OVIKIT0518)

    Z-Flex 5" x 18' Double Wall Oil Vent Connector Kit (2OVIKIT0518)

    Z-Flex 5" x 18' Double Wall Oil Vent Connector Kit (2OVIKIT0518)

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

    Regular Price: $889.67

    Special Price: $711.74

    Details
  2. Z-Flex 7" x 18' Additional Length of Double Wall Oil Vent Pipe (2OILVNT0718)

    Z-Flex 7" x 18' Additional Length of Double Wall Oil Vent Pipe (2OILVNT0718)

    Z-Flex 7" x 18' Additional Length of Double Wall Oil Vent Pipe (2OILVNT0718)

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

    Regular Price: $891.45

    Special Price: $713.16

    Details
  3. Z-Flex 9" x 35' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0935)

    Z-Flex 9" x 35' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0935)

    Z-Flex 9" x 35' Length of Aluminum 2-Ply Liner (2GAXXXX0935)

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

    Regular Price: $891.54

    Special Price: $713.23

    Details
  4. Z-Flex 10" x 30' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX1030)

    Z-Flex 10" x 30' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX1030)

    Z-Flex 10" x 30' Length of Aluminum 2-Ply Liner (2GAXXXX1030)

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

    Regular Price: $895.15

    Special Price: $716.12

    Details
  5. Z-Flex 6" x 15' Double Wall Oil Vent Connector Kit (2OVIKIT0615)

    Z-Flex 6" x 15' Double Wall Oil Vent Connector Kit (2OVIKIT0615)

    Z-Flex 6" x 15' Double Wall Oil Vent Connector Kit (2OVIKIT0615)

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

    Regular Price: $902.65

    Special Price: $722.12

    Details
  6. Z-Flex 10" x 20' Aluminum 2-Ply Chimney Liner Kit (2GACKIT1020)

    Z-Flex 10" x 20' Aluminum 2-Ply Chimney Liner Kit (2GACKIT1020)

    Z-Flex 10" x 20' Aluminum 2-Ply Chimney Liner Kit (2GACKIT1020)

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

    Regular Price: $904.28

    Special Price: $723.42

    Details
  7. Z-Flex 8" x 15' Additional Length of Double Wall Oil Vent Pipe (2OILVNT0815)

    Z-Flex 8" x 15' Additional Length of Double Wall Oil Vent Pipe (2OILVNT0815)

    Z-Flex 8" x 15' Additional Length of Double Wall Oil Vent Pipe (2OILVNT0815)

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

    Regular Price: $905.57

    Special Price: $724.45

    Details
  8. Z-Flex 6" x 18' Double Wall Oil Vent Connector Kit (2OVIKIT0618)

    Z-Flex 6" x 18' Double Wall Oil Vent Connector Kit (2OVIKIT0618)

    Z-Flex 6" x 18' Double Wall Oil Vent Connector Kit (2OVIKIT0618)

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

    Regular Price: $922.56

    Special Price: $738.06

    Details
  9. Z-Flex 9" x 20' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0920)

    Z-Flex 9" x 20' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0920)

    Z-Flex 9" x 20' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0920)

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

    Regular Price: $930.12

    Special Price: $744.10

    Details
  10. Z-Flex 7" x 15' Double Wall Oil Vent Connector Kit (2OVIKIT0715)

    Z-Flex 7" x 15' Double Wall Oil Vent Connector Kit (2OVIKIT0715)

    Z-Flex 7" x 15' Double Wall Oil Vent Connector Kit (2OVIKIT0715)

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

    Regular Price: $930.60

    Special Price: $744.49

    Details
  11. Z-Flex 8" x 40' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0840)

    Z-Flex 8" x 40' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0840)

    Z-Flex 8" x 40' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0840)

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

    Regular Price: $932.08

    Special Price: $745.66

    Details
  12. Z-Flex 8" x 18' Single Wall Oil Vent Connector Kit (2OVSKIT0818)

    Z-Flex 8" x 18' Single Wall Oil Vent Connector Kit (2OVSKIT0818)

    Z-Flex 8" x 18' Single Wall Oil Vent Connector Kit (2OVSKIT0818)

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

    Regular Price: $935.59

    Special Price: $748.48

    Details
  13. Z-Flex 9" x 40' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0940)

    Z-Flex 9" x 40' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0940)

    Z-Flex 9" x 40' Length of Aluminum 2-Ply Liner (2GAXXXX0940)

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

    Regular Price: $944.02

    Special Price: $755.22

    Details
  14. Z-Flex 8" x 18' Additional Length of Double Wall Oil Vent Pipe (2OILVNT0818)

    Z-Flex 8" x 18' Additional Length of Double Wall Oil Vent Pipe (2OILVNT0818)

    Z-Flex 8" x 18' Additional Length of Double Wall Oil Vent Pipe (2OILVNT0818)

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

    Regular Price: $945.93

    Special Price: $756.75

    Details
  15. Z-Flex 10" x 25' Aluminum 2-Ply Chimney Liner Kit (2GACKIT1025)

    Z-Flex 10" x 25' Aluminum 2-Ply Chimney Liner Kit (2GACKIT1025)

    Z-Flex 10" x 25' Aluminum 2-Ply Chimney Liner Kit (2GACKIT1025)

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

    Regular Price: $955.26

    Special Price: $764.21

    Details
  16. Z-Flex 7" x 18' Double Wall Oil Vent Connector Kit (2OVIKIT0718)

    Z-Flex 7" x 18' Double Wall Oil Vent Connector Kit (2OVIKIT0718)

    Z-Flex 7" x 18' Double Wall Oil Vent Connector Kit (2OVIKIT0718)

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

    Regular Price: $955.45

    Special Price: $764.36

    Details
  17. Z-Flex 10" x 35' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX1035)

    Z-Flex 10" x 35' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX1035)

    Z-Flex 10" x 35' Length of Aluminum 2-Ply Liner (2GAXXXX1035)

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

    Regular Price: $956.98

    Special Price: $765.59

    Details
  18. Z-Flex 8" x 15' Double Wall Oil Vent Connector Kit (2OVIKIT0815)

    Z-Flex 8" x 15' Double Wall Oil Vent Connector Kit (2OVIKIT0815)

    Z-Flex 8" x 15' Double Wall Oil Vent Connector Kit (2OVIKIT0815)

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

    Regular Price: $979.62

    Special Price: $783.70

    Details
  19. Z-Flex 8" x 45' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0845)

    Z-Flex 8" x 45' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0845)

    Z-Flex 8" x 45' Length of Aluminum 2-Ply Liner (2GAXXXX0845)

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

    Regular Price: $981.81

    Special Price: $785.45

    Details
  20. Z-Flex 9" x 25' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0925)

    Z-Flex 9" x 25' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0925)

    Z-Flex 9" x 25' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0925)

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

    Regular Price: $983.34

    Special Price: $786.67

    Details
  21. Z-Flex 9" x 45' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0945)

    Z-Flex 9" x 45' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0945)

    Z-Flex 9" x 45' Length of Aluminum 2-Ply Liner (2GAXXXX0945)

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

    Regular Price: $996.53

    Special Price: $797.23

    Details
  22. Z-Flex 8" x 18' Double Wall Oil Vent Connector Kit (2OVIKIT0818)

    Z-Flex 8" x 18' Double Wall Oil Vent Connector Kit (2OVIKIT0818)

    Z-Flex 8" x 18' Double Wall Oil Vent Connector Kit (2OVIKIT0818)

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

    Regular Price: $1,012.67

    Special Price: $810.13

    Details
  23. Z-Flex 10" x 40' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX1040)

    Z-Flex 10" x 40' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX1040)

    Z-Flex 10" x 40' Length of Aluminum 2-Ply Liner (2GAXXXX1040)

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

    Regular Price: $1,018.83

    Special Price: $815.06

    Details
  24. Z-Flex 8" x 50' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0850)

    Z-Flex 8" x 50' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0850)

    Z-Flex 8" x 50' Length of Aluminum 2-Ply Liner (2GAXXXX0850)

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

    Regular Price: $1,032.67

    Special Price: $826.14

    Details
  25. Z-Flex 9" x 30' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0930)

    Z-Flex 9" x 30' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0930)

    Z-Flex 9" x 30' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0930)

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

    Regular Price: $1,035.86

    Special Price: $828.69

    Details
  26. Z-Flex 9" x 50' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0950)

    Z-Flex 9" x 50' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0950)

    Z-Flex 9" x 50' Length of Aluminum 2-Ply Liner (2GAXXXX0950)

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

    Regular Price: $1,049.02

    Special Price: $839.21

    Details
  27. Z-Flex 10" x 30' Aluminum 2-Ply Chimney Liner Kit (2GACKIT1030)

    Z-Flex 10" x 30' Aluminum 2-Ply Chimney Liner Kit (2GACKIT1030)

    Z-Flex 10" x 30' Aluminum 2-Ply Chimney Liner Kit (2GACKIT1030)

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

    Regular Price: $1,074.71

    Special Price: $859.77

    Details
  28. Z-Flex 10" x 45' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX1045)

    Z-Flex 10" x 45' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX1045)

    Z-Flex 10" x 45' Length of Aluminum 2-Ply Liner (2GAXXXX1045)

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

    Regular Price: $1,080.68

    Special Price: $864.55

    Details
  29. Z-Flex 9" x 35' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0935)

    Z-Flex 9" x 35' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0935)

    Z-Flex 9" x 35' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0935)

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

    Regular Price: $1,085.85

    Special Price: $868.69

    Details
  30. Z-Flex 7" x 40' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0740)

    Z-Flex 7" x 40' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0740)

    Z-Flex 7" x 40' Length of Aluminum 2-Ply Liner (2GAXXXX0740)

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

    Regular Price: $1,104.92

    Special Price: $883.94

    Details
  31. Z-Flex 10" x 50' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX1050)

    Z-Flex 10" x 50' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX1050)

    Z-Flex 10" x 50' Length of Aluminum 2-Ply Liner (2GAXXXX1050)

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

    Regular Price: $1,142.50

    Special Price: $914.01

    Details
  32. Z-Flex 7" x 45' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0745)

    Z-Flex 7" x 45' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0745)

    Z-Flex 7" x 45' Length of Aluminum 2-Ply Liner (2GAXXXX0745)

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

    Regular Price: $1,149.45

    Special Price: $919.55

    Details
  33. Z-Flex 10" x 35' Aluminum 2-Ply Chimney Liner Kit (2GACKIT1035)

    Z-Flex 10" x 35' Aluminum 2-Ply Chimney Liner Kit (2GACKIT1035)

    Z-Flex 10" x 35' Aluminum 2-Ply Chimney Liner Kit (2GACKIT1035)

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

    Regular Price: $1,156.27

    Special Price: $925.01

    Details
  34. Z-Flex 7" x 50' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0750)

    Z-Flex 7" x 50' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0750)

    Z-Flex 7" x 50' Length of Aluminum 2-Ply Liner (2GAXXXX0750)

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

    Regular Price: $1,193.96

    Special Price: $955.18

    Details
  35. Z-Flex 9" x 40' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0940)

    Z-Flex 9" x 40' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0940)

    Z-Flex 9" x 40' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0940)

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

    Regular Price: $1,222.68

    Special Price: $978.14

    Details
  36. Z-Flex 8" x 50' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0850)

    Z-Flex 8" x 50' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0850)

    Z-Flex 8" x 50' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0850)

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

    Regular Price: $1,226.19

    Special Price: $980.95

    Details
  37. Z-Flex 9" x 45' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0945)

    Z-Flex 9" x 45' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0945)

    Z-Flex 9" x 45' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0945)

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

    Regular Price: $1,254.51

    Special Price: $1,003.61

    Details
  38. Z-Flex 7" x 40' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0740)

    Z-Flex 7" x 40' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0740)

    Z-Flex 7" x 40' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0740)

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

    Regular Price: $1,275.99

    Special Price: $1,020.80

    Details
  39. Z-Flex 9" x 50' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0950)

    Z-Flex 9" x 50' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0950)

    Z-Flex 9" x 50' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0950)

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

    Regular Price: $1,296.08

    Special Price: $1,036.87

    Details
  40. Z-Flex 10" x 40' Aluminum 2-Ply Chimney Liner Kit (2GACKIT1040)

    Z-Flex 10" x 40' Aluminum 2-Ply Chimney Liner Kit (2GACKIT1040)

    Z-Flex 10" x 40' Aluminum 2-Ply Chimney Liner Kit (2GACKIT1040)

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

    Regular Price: $1,312.12

    Special Price: $1,049.70

    Details
  41. Z-Flex 7" x 45' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0745)

    Z-Flex 7" x 45' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0745)

    Z-Flex 7" x 45' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0745)

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

    Regular Price: $1,318.22

    Special Price: $1,054.58

    Details
  42. Z-Flex 10" x 45' Aluminum 2-Ply Chimney Liner Kit (2GACKIT1045)

    Z-Flex 10" x 45' Aluminum 2-Ply Chimney Liner Kit (2GACKIT1045)

    Z-Flex 10" x 45' Aluminum 2-Ply Chimney Liner Kit (2GACKIT1045)

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

    Regular Price: $1,342.69

    Special Price: $1,074.16

    Details
  43. Z-Flex 7" x 50' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0750)

    Z-Flex 7" x 50' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0750)

    Z-Flex 7" x 50' Aluminum 2-Ply Chimney Liner Kit (2GACKIT0750)

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

    Regular Price: $1,359.04

    Special Price: $1,087.22

    Details
  44. Z-Flex 10" x 50' Aluminum 2-Ply Chimney Liner Kit (2GACKIT1050)

    Z-Flex 10" x 50' Aluminum 2-Ply Chimney Liner Kit (2GACKIT1050)

    Z-Flex 10" x 50' Aluminum 2-Ply Chimney Liner Kit (2GACKIT1050)

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

    Regular Price: $1,370.39

    Special Price: $1,096.31

    Details

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