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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 10" x 4' 304 Stainless Steel Rigid Liner (2ZR321F1004)

    Z-Flex 10" x 4' 304 Stainless Steel Rigid Liner (2ZR321F1004)

    Z-Flex 10" x 4' 304 Stainless Steel Rigid Liner (2ZR321F1004)

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

    Regular Price: $142.11

    Special Price: $113.69

    Details
  2. Z-Flex 9" x 4' 304 Stainless Steel Rigid Liner (2ZR321F0904)

    Z-Flex 9" x 4' 304 Stainless Steel Rigid Liner (2ZR321F0904)

    Z-Flex 9" x 4' 304 Stainless Steel Rigid Liner (2ZR321F0904)

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

    Regular Price: $131.42

    Special Price: $105.14

    Details
  3. Z-Flex 8" x 4' 304 Stainless Steel Rigid Liner (2ZR321F0804)

    Z-Flex 8" x 4' 304 Stainless Steel Rigid Liner (2ZR321F0804)

    Z-Flex 8" x 4' 304 Stainless Steel Rigid Liner (2ZR321F0804)

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

    Regular Price: $126.30

    Special Price: $101.04

    Details
  4. Z-Flex 7" x 4' 304 Stainless Steel Rigid Liner (2ZR321F0704)

    Z-Flex 7" x 4' 304 Stainless Steel Rigid Liner (2ZR321F0704)

    Z-Flex 7" x 4' 304 Stainless Steel Rigid Liner (2ZR321F0704)

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

    Regular Price: $110.42

    Special Price: $88.34

    Details
  5. Z-Flex 10" x 3' 304 Stainless Steel Rigid Liner (2ZR321F1003)

    Z-Flex 10" x 3' 304 Stainless Steel Rigid Liner (2ZR321F1003)

    Z-Flex 10" x 3' 304 Stainless Steel Rigid Liner (2ZR321F1003)

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

    Regular Price: $109.77

    Special Price: $87.81

    Details
  6. Z-Flex 9" x 3' 304 Stainless Steel Rigid Liner (2ZR321F0903)

    Z-Flex 9" x 3' 304 Stainless Steel Rigid Liner (2ZR321F0903)

    Z-Flex 9" x 3' 304 Stainless Steel Rigid Liner (2ZR321F0903)

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

    Regular Price: $106.91

    Special Price: $85.53

    Details
  7. Z-Flex 8" x 3' 304 Stainless Steel Rigid Liner (2ZR321F0803)

    Z-Flex 8" x 3' 304 Stainless Steel Rigid Liner (2ZR321F0803)

    Z-Flex 8" x 3' 304 Stainless Steel Rigid Liner (2ZR321F0803)

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

    Regular Price: $100.17

    Special Price: $80.14

    Details
  8. Z-Flex 6" x 4' 304 Stainless Steel Rigid Liner (2ZR321F0604)

    Z-Flex 6" x 4' 304 Stainless Steel Rigid Liner (2ZR321F0604)

    Z-Flex 6" x 4' 304 Stainless Steel Rigid Liner (2ZR321F0604)

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

    Regular Price: $99.81

    Special Price: $79.85

    Details
  9. Z-Flex 7" x 3' 304 Stainless Steel Rigid Liner (2ZR321F0703)

    Z-Flex 7" x 3' 304 Stainless Steel Rigid Liner (2ZR321F0703)

    Z-Flex 7" x 3' 304 Stainless Steel Rigid Liner (2ZR321F0703)

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

    Regular Price: $90.03

    Special Price: $72.03

    Details
  10. Z-Flex 5" x 4' 304 Stainless Steel Rigid Liner (2ZR321F0504)

    Z-Flex 5" x 4' 304 Stainless Steel Rigid Liner (2ZR321F0504)

    Z-Flex 5" x 4' 304 Stainless Steel Rigid Liner (2ZR321F0504)

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

    Regular Price: $87.08

    Special Price: $69.66

    Details

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