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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.

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  1. Z-Flex 3" Stainless Steel Rigid Stacking Tee w/ Cap (2ZRBTXX03)

    Z-Flex 3" Stainless Steel Rigid Stacking Tee w/ Cap (2ZRBTXX03)

    Z-Flex 3" Stainless Steel Rigid Stacking Tee w/ Cap (2ZRBTXX03)

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

    Regular Price: $73.81

    Special Price: $59.05

    Details
  2. Z-Flex 4" Stainless Steel Rigid Stacking Tee w/ Cap (2ZRBTXX04)

    Z-Flex 4" Stainless Steel Rigid Stacking Tee w/ Cap (2ZRBTXX04)

    Z-Flex 4" Stainless Steel Rigid Stacking Tee w/ Cap (2ZRBTXX04)

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

    Regular Price: $81.00

    Special Price: $64.80

    Details
  3. Z-Flex 2" Flex Ready Pellet Tee w/ 3" Branch (2ZPT43)

    Z-Flex 2" Flex Ready Pellet Tee w/ 3" Branch (2ZPT43)

    Z-Flex 2" Flex Ready Pellet Tee w/ 3" Branch (2ZPT43)

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

    Regular Price: $83.14

    Special Price: $66.51

    Details
  4. Z-Flex 3" Lock'N Go Tee (2ZFTCB03)

    Z-Flex 3" Lock'N Go Tee (2ZFTCB03)

    Z-Flex 3" Lock'N Go Tee (2ZFTCB03)

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

    Regular Price: $84.38

    Special Price: $67.50

    Details
  5. Z-Flex 3" Z-Lok Tee (2ZFTJ03)

    Z-Flex 3" Z-Lok Tee (2ZFTJ03)

    Z-Flex 3" Z-Lok Tee (2ZFTJ03)

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

    Regular Price: $84.38

    Special Price: $67.50

    Details
  6. Z-Flex 5" Stainless Steel Rigid Stacking Tee w/ Cap (2ZRBTXX05)

    Z-Flex 5" Stainless Steel Rigid Stacking Tee w/ Cap (2ZRBTXX05)

    Z-Flex 5" Stainless Steel Rigid Stacking Tee w/ Cap (2ZRBTXX05)

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

    Regular Price: $88.25

    Special Price: $70.60

    Details
  7. Z-Flex 4" Z-Lok Tee (2ZFTJ04)

    Z-Flex 4" Z-Lok Tee (2ZFTJ04)

    Z-Flex 4" Z-Lok Tee (2ZFTJ04)

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

    Regular Price: $92.61

    Special Price: $74.09

    Details
  8. Z-Flex 4" Lock'N Go Tee (2ZFTCB04)

    Z-Flex 4" Lock'N Go Tee (2ZFTCB04)

    Z-Flex 4" Lock'N Go Tee (2ZFTCB04)

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

    Regular Price: $92.61

    Special Price: $74.09

    Details
  9. Z-Flex 6" Stainless Steel Rigid Stacking Tee w/ Cap (2ZRBTXX06)

    Z-Flex 6" Stainless Steel Rigid Stacking Tee w/ Cap (2ZRBTXX06)

    Z-Flex 6" Stainless Steel Rigid Stacking Tee w/ Cap (2ZRBTXX06)

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

    Regular Price: $98.80

    Special Price: $79.04

    Details
  10. Z-Flex 5" Lock'N Go Tee (2ZFTCB05)

    Z-Flex 5" Lock'N Go Tee (2ZFTCB05)

    Z-Flex 5" Lock'N Go Tee (2ZFTCB05)

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

    Regular Price: $100.84

    Special Price: $80.68

    Details

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  2. Stainless Steel AL29-4C (92)
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  1. Z-Flex 2" Chimney Liner (1)
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  8. Z-Flex 9" Chimney Liner (3)
  9. Z-Flex 10" Chimney Liner (3)
  10. Z-Vent 3" Single-Wall Venting (1)
  11. Z-Vent 4" Single-Wall Venting (2)
  12. Z-Vent 5" Single-Wall Venting (2)
  13. Z-Vent 6" Single-Wall Venting (2)
  14. Z-Vent 7" Single-Wall Venting (3)
  15. Z-Vent 8" Single-Wall Venting (3)
  16. Z-Vent 9" Single-Wall Venting (3)
  17. Z-Vent 10" Single-Wall Vent (3)
  18. Z-Vent 12" Single-Wall Vent (3)
  19. Z-Vent 14" Single-Wall Vent (3)
  20. Z-Vent 16" Single-Wall Vent (3)
  21. Z-Vent 18" Single-Wall Vent (3)
  22. Z-Vent 20" Single-Wall Vent (2)
  23. Z-Vent 22" Single-Wall Vent (3)
  24. Z-Vent 24" Single-Wall Vent (3)
  25. Z-Vent 3" Double-Wall Vent (1)
  26. Z-Vent 4" Double-Wall Vent (2)
  27. Z-Vent 5" Double-Wall Vent (2)
  28. Z-Vent 6" Double-Wall Vent (3)
  29. Z-Vent 7" Double-Wall Vent (3)
  30. Z-Vent 8" Double-Wall Vent (3)
  31. Z-Vent 9" Double-Wall Vent (3)
  32. Z-Vent 10" Double-Wall Vent (3)
  33. Z-Vent 12" Double-Wall Vent (3)
  34. Z-Vent 14" Double-Wall Vent (3)
  35. Z-Vent 16" Double-Wall Vent (3)
  36. Z-Vent 18" Double-Wall Vent (3)
  37. Z-Vent 20" Double-Wall Vent (3)
  38. Z-Vent 22" Double-Wall Vent (3)
  39. Z-Vent 24" Double-Wall Vent (3)
  40. Z-Vent 26" Double-Wall Vent (3)
  41. Z-Vent 28" Double-Wall Vent (3)
  42. Z-Vent 30" Double-Wall Vent (3)
  43. Z-Vent 32" Double-Wall Vent (3)
Venting Style
  1. Z-Flex Chimney Liner (25)
  2. Z-Flex Z-Vent Dble-Wall SS (53)
  3. Z-Flex Z-Vent Single-Wall SS (39)
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