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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" Z-Max Cap (2ZMRCS04)

    Z-Flex 4" Z-Max Cap (2ZMRCS04)

    Z-Flex 4" Stainless Steel Z-Max Cap (2ZMRCS04)

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

    Regular Price: $100.65

    Special Price: $80.51

    Details
  2. Z-Flex 6" x 6" x 3" Galvanized Y (2GAYXXX663)

    Z-Flex 6" x 6" x 3" Galvanized Y (2GAYXXX663)

    Z-Flex 6" x 6" x 3" Galvanized Y (2GAYXXX663)

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

    Regular Price: $100.84

    Special Price: $80.67

    Details
  3. Z-Flex 6" x 6" x 4" Galvanized Y (2GAYXXX664)

    Z-Flex 6" x 6" x 4" Galvanized Y (2GAYXXX664)

    Z-Flex 6" x 6" x 4" Galvanized Y (2GAYXXX664)

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

    Regular Price: $100.84

    Special Price: $80.67

    Details
  4. Z-Flex 8" Z-Max Flashing (2AFCS08)

    Z-Flex 8" Z-Max Flashing (2AFCS08)

    Z-Flex 8" Stainless Steel Z-Max Flashing (2AFCS08)

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

    Regular Price: $104.96

    Special Price: $83.96

    Details
  5. Z-Flex 7" x 7" x 4" Galvanized Y (2GAYXXX774)

    Z-Flex 7" x 7" x 4" Galvanized Y (2GAYXXX774)

    Z-Flex 7" x 7" x 4" Galvanized Y (2GAYXXX774)

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

    Regular Price: $106.44

    Special Price: $85.16

    Details
  6. Z-Flex 7" x 7" x 3" Galvanized Y (2GAYXXX773)

    Z-Flex 7" x 7" x 3" Galvanized Y (2GAYXXX773)

    Z-Flex 7" x 7" x 3" Galvanized Y (2GAYXXX773)

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

    Regular Price: $106.44

    Special Price: $85.16

    Details
  7. Z-Flex 8" x 8" x 4" Galvanized Y (2GAYXXX884)

    Z-Flex 8" x 8" x 4" Galvanized Y (2GAYXXX884)

    Z-Flex 8" x 8" x 4" Galvanized Y (2GAYXXX884)

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

    Regular Price: $108.58

    Special Price: $86.87

    Details
  8. Z-Flex 8" x 8" x 3" Galvanized Y (2GAYXXX883)

    Z-Flex 8" x 8" x 3" Galvanized Y (2GAYXXX883)

    Z-Flex 8" x 8" x 3" Galvanized Y (2GAYXXX883)

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

    Regular Price: $108.58

    Special Price: $86.87

    Details
  9. Z-Flex 7" Stainless Steel Oval to Round Adapter (2ZRORAX07)

    Z-Flex 7" Stainless Steel Oval to Round Adapter (2ZRORAX07)

    Z-Flex 7" Stainless Steel Oval to Round Adapter (2ZRORAX07)

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

    Regular Price: $110.69

    Special Price: $88.55

    Details
  10. Z-Flex 7" Stainless Steel Round to Oval Adapter (2ZRROAX07)

    Z-Flex 7" Stainless Steel Round to Oval Adapter (2ZRROAX07)

    Z-Flex 7" Stainless Steel Round to Oval Adapter (2ZRROAX07)

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

    Regular Price: $110.69

    Special Price: $88.55

    Details

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  2. Stainless Steel (17)
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  1. Rigid (24)
Product Type
  1. Z-Flex 4" Chimney Liner (2)
  2. Z-Flex 5" Chimney Liner (1)
  3. Z-Flex 5.5" Chimney Liner (1)
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  5. Z-Flex 7" Chimney Liner (6)
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