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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 6" x 20' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0620)

    Z-Flex 6" x 20' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0620)

    Z-Flex 6" x 20' Length of Aluminum 2-Ply Liner (2GAXXXX0620)

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

    Regular Price: $206.69

    Special Price: $165.36

    Details
  2. Z-Flex 4" x 30' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0430)

    Z-Flex 4" x 30' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0430)

    Z-Flex 4" x 30' Length of Aluminum 2-Ply Liner (2GAXXXX0430)

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

    Regular Price: $206.61

    Special Price: $165.29

    Details
  3. Z-Flex 8" x 15' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0815)

    Z-Flex 8" x 15' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0815)

    Z-Flex 8" x 15' Length of Aluminum 2-Ply Liner (2GAXXXX0815)

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

    Regular Price: $206.48

    Special Price: $165.19

    Details
  4. Z-Flex Z-Vent 7" Flashing 0-30 Degrees Stainless Steel Venting (2SVDFA07)

    Z-Flex Z-Vent 7" Flashing 0-30 Degrees (2SVDFA07)

    Z-Flex Z-Vent 7" Flashing 0-30 Degrees (2SVDFA07)

    Double Wall Stainless Steel, Category III Venting Learn More

    Regular Price: $206.40

    Special Price: $165.13

    Details
  5. Z-Flex Z-Vent 5" Rain Cap with Wind Band Stainless Steel Venting (2SVDRCX05)

    Z-Flex Z-Vent 5" Rain Cap with Wind Band (2SVDRCX05)

    Z-Flex Z-Vent 5" Rain Cap with Wind Band (2SVDRCX05)

    Double Wall Stainless Steel, Category III Venting Learn More

    Regular Price: $205.63

    Special Price: $164.51

    Details
  6. Z-Flex Z-Vent 12" Universal Adaptor (2SVSA12)

    Z-Flex Z-Vent 12" Universal Adaptor (2SVSA12)

    Z-Flex Z-Vent 12" Universal Adaptor (2SVSA12)

    Single Wall Stainless Steel, Category III Venting Learn More

    Regular Price: $205.63

    Special Price: $164.51

    Details
  7. Z-Flex Z-Dens 4" Concentric Termination Horizontal (2ZDCTH46)

    Z-Flex Z-Dens 4" Concentric Termination Horizontal (2ZDCTH46)

    Z-Flex Z-Dens 4" Concentric Termination Horizontal (2ZDCTH46)

    Single Walled. Terminates horizontal piping Learn More

    Regular Price: $204.27

    Special Price: $163.42

    Details
  8. Z-Flex Z-Vent 12" Firestop with Support Stainless Steel Venting (2SVSFSS12)

    Z-Flex Z-Vent 12" Firestop with Support (2SVSFSS12)

    Z-Flex Z-Vent 12" Firestop with Support (2SVSFSS12)

    Single Wall Stainless Steel, Category III Venting Learn More

    Regular Price: $204.19

    Special Price: $163.36

    Details
  9. Z-Flex 6" x 5' Insulating Blanket with Wrap and Gear Clamps (2INSKIT0605)

    Z-Flex 6" x 5' Insulating Blanket with Wrap and Gear Clamps (2INSKIT0605)

    Z-Flex 6" x 5' Insulating Blanket with Wrap and Gear Clamps (2INSKIT0605)

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

    Regular Price: $204.09

    Special Price: $163.28

    Details
  10. Z-Flex Z-Vent 6" Low Resistance Rain Cap Stainless Steel Venting (2SVSRC06)

    Z-Flex Z-Vent 6" Low Resistance Rain Cap (2SVSRC06)

    Z-Flex Z-Vent 6" Low Resistance Rain Cap (2SVSRC06)

    Single Wall Stainless Steel, Category III Venting Learn More

    Regular Price: $203.65

    Special Price: $162.93

    Details

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Application
  1. Commercial,Residential (45)
Material of Construction
  1. Aluminum (13)
  2. Ceramic Fiber (1)
  3. Stainless Steel (4)
  4. Stainless Steel AL29-4C (26)
  5. Polypropylene (1)
Product Sub Type
  1. Concentric (1)
  2. Flexible (15)
  3. Rigid (29)
Product Type
  1. Z-Dens 4" Single-Wall Venting (1)
  2. Z-Flex 3" Chimney Liner (1)
  3. Z-Flex 4" Chimney Liner (3)
  4. Z-Flex 5" Chimney Liner (2)
  5. Z-Flex 6" Chimney Liner (5)
  6. Z-Flex 8" Chimney Liner (4)
  7. Z-Flex 9" Chimney Liner (1)
  8. Z-Flex 10" Chimney Liner (2)
  9. Z-Vent 4" Single-Wall Venting (1)
  10. Z-Vent 5" Single-Wall Venting (1)
  11. Z-Vent 6" Single-Wall Venting (1)
  12. Z-Vent 7" Single-Wall Venting (1)
  13. Z-Vent 8" Single-Wall Venting (4)
  14. Z-Vent 12" Single-Wall Vent (2)
  15. Z-Vent 14" Single-Wall Vent (1)
  16. Z-Vent 16" Single-Wall Vent (1)
  17. Z-Vent 18" Single-Wall Vent (1)
  18. Z-Vent 4" Double-Wall Vent (3)
  19. Z-Vent 5" Double-Wall Vent (1)
  20. Z-Vent 6" Double-Wall Vent (1)
  21. Z-Vent 7" Double-Wall Vent (2)
  22. Z-Vent 9" Double-Wall Vent (1)
  23. Z-Vent 10" Double-Wall Vent (2)
  24. Z-Vent 12" Double-Wall Vent (2)
  25. Z-Vent 16" Double-Wall Vent (1)
Venting Style
  1. Z-Flex Chimney Liner (18)
  2. Z-Flex Z-Dens Polypropylene (1)
  3. Z-Flex Z-Vent Dble-Wall SS (13)
  4. Z-Flex Z-Vent Single-Wall SS (13)
Venting Type
  1. Kits (7)
  2. Straight Pipes (2)
  3. Elbows (6)
  4. Tees (3)
  5. Tee Caps (3)
  6. Adaptors (2)
  7. Wall Thimbles (2)
  8. Terminations (2)
  9. Inspection Ports (1)
  10. Roof Flashings (1)
  11. Supports (4)
  12. Rain Caps (3)
  13. Chimney Liner Connectors (1)
  14. Intake Air Ducts (1)
  15. Chimney Liner Lengths (6)
  16. Insulating Blankets (1)
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