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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 4" to 5" Stainless Steel Increaser (2IN4I5X)

    Z-Flex 4" to 5" Stainless Steel Increaser (2IN4I5X)

    Z-Flex 4" to 5" Stainless Steel Increaser (2IN4I5X)

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

    Regular Price: $62.80

    Special Price: $50.24

    Details
  2. Z-Flex 5" to 4" Stainless Steel Reducer (2RD5R4X)

    Z-Flex 5" to 4" Stainless Steel Reducer (2RD5R4X)

    Z-Flex 5" to 4" Stainless Steel Reducer (2IN3I4X)

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

    Regular Price: $62.80

    Special Price: $50.24

    Details
  3. Z-Flex Z-Dens 3" Condensate Drain - White (2ZDCD3)

    Z-Flex Z-Dens 3" Condensate Drain - White (2ZDCD3)

    Z-Flex Z-Dens 3" Condensate Drain - White (2ZDCD3)

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

    Regular Price: $62.87

    Special Price: $50.30

    Details
  4. Z-Flex Z-Vent 3" x 18" Stainless Steel Vent Pipe (2SVEPWCF0301.5)

    Z-Flex Z-Vent 3" x 18" Stainless Steel Vent Pipe (2SVEPWCF0301.5)

    Z-Flex Z-Vent 3" x 18" Stainless Steel Vent Pipe (2SVEPWCF0301.5)

    Can be cut to length Learn More

    Regular Price: $63.09

    Special Price: $50.47

    Details
  5. Z-Flex 6" Fixed Stainless Steel 90 Degree Elbow (2RE90XX06)

    Z-Flex 6" Fixed Stainless Steel 90 Degree Elbow (2RE90XX06)

    Z-Flex 6" Fixed Stainless Steel 90 Degree Elbow (2RE90XX06)

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

    Regular Price: $63.12

    Special Price: $50.50

    Details
  6. Z-Flex Z-Vent 5" x 12" Stainless Steel Vent Pipe (2SVEPWC0501)

    Z-Flex Z-Vent 5" x 12" Stainless Steel Vent Pipe (2SVEPWC0501)

    Z-Flex Z-Vent 5" x 12" Stainless Steel Vent Pipe (2SVEPWC0501)

    Single Walled. Can be cut to length Learn More

    Regular Price: $63.16

    Special Price: $50.53

    Details
  7. Z-Flex Z-Vent 8" Tee Cap Stainless Steel Venting (2SVSTC08)

    Z-Flex Z-Vent 8" Tee Cap (2SVSTC08)

    Z-Flex Z-Vent 8" Tee Cap (2SVSTC08)

    Single Wall Stainless Steel, Category III Venting Learn More

    Regular Price: $63.42

    Special Price: $50.74

    Details
  8. Z-Flex Z-Vent 14" Guy Band Stainless Steel Venting (2SVSGB14)

    Z-Flex Z-Vent 22" Guy Band (2SVSGB22)

    Z-Flex Z-Vent 22" Guy Band (2SVSGB22)

    Single Wall Stainless Steel, Category III Venting Learn More

    Regular Price: $64.02

    Special Price: $51.22

    Details
  9. Z-Flex 8" B-Vent Connector (2CNNBFC08)

    Z-Flex 8" B-Vent Connector (2CNNBFC08)

    Z-Flex 8" B-Vent Connector (2CNNBFC08)

    Type B Gas Vent to Z-Flex Chimney Lining Connector For Use with Category I Natural-Draft Gas-Fired Heating Equipment and Gas Fireplaces Learn More

    Regular Price: $64.18

    Special Price: $51.35

    Details
  10. Z-Flex Z-Dens 3"/5" 87 Degree Concentric Elbow - White (2ZDCE3587)

    Z-Flex Z-Dens 3"/5" 87 Degree Concentric Elbow - White (2ZDCE3587)

    Z-Flex Z-Dens 3"/5" 87 Degree Concentric Elbow - White (2ZDCE3587)

    Concentric. Can be cut to length Learn More

    Regular Price: $64.37

    Special Price: $51.50

    Details

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Application
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Material of Construction
  1. Aluminum (6)
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  1. Z-Dens 2" Single-Wall Venting (3)
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  14. Z-Flex 7" Chimney Liner (1)
  15. Z-Flex 8" Chimney Liner (4)
  16. Z-Flex 9" Chimney Liner (2)
  17. Z-Flex 10" Chimney Liner (3)
  18. Z-Vent 3" Single-Wall Venting (5)
  19. Z-Vent 4" Single-Wall Venting (4)
  20. Z-Vent 5" Single-Wall Venting (5)
  21. Z-Vent 6" Single-Wall Venting (4)
  22. Z-Vent 7" Single-Wall Venting (2)
  23. Z-Vent 8" Single-Wall Venting (1)
  24. Z-Vent 22" Single-Wall Vent (1)
  25. Z-Vent 24" Single-Wall Vent (1)
  26. Z-Vent 3" Double-Wall Vent (1)
  27. Z-Vent 4" Double-Wall Vent (1)
  28. Z-Vent 5" Double-Wall Vent (1)
  29. Z-Vent 9" Double-Wall Vent (1)
  30. Z-Vent 22" Double-Wall Vent (1)
Venting Style
  1. Z-Flex Chimney Liner (43)
  2. Z-Flex Z-Dens Polypropylene (13)
  3. Z-Flex Z-Vent Dble-Wall SS (5)
  4. Z-Flex Z-Vent Single-Wall SS (23)
Venting Type
  1. Kits (2)
  2. Straight Pipes (10)
  3. Elbows (4)
  4. Tee Caps (5)
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  15. Intake Air Ducts (2)
  16. Chimney Liner Lengths (6)
  17. Nose Cones (2)
  18. Decreasers (2)
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