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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 Deluxe Rain Cap (2RNCAPS03)

    Z-Flex 3" Stainless Steel Deluxe Rain Cap (2RNCAPS03)

    Z-Flex 3" Stainless Steel Deluxe Rain Cap (2RNCAPS03)

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

    Regular Price: $87.72

    Special Price: $70.18

    Details
  2. Z-Flex 7" x 3' Gas Single Vent Kit (2SVKXXX0703)

    Z-Flex 7" x 3' Gas Single Vent Kit (2SVKXXX0703)

    Z-Flex 7" x 3' Gas Single Vent Kit (2SVKXXX0703)

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

    Regular Price: $87.87

    Special Price: $70.30

    Details
  3. Z-Flex 4" x 6' Gas Single Vent Kit (2SVKXXX0406)

    Z-Flex 4" x 6' Gas Single Vent Kit (2SVKXXX0406)

    Z-Flex 4" x 6' Gas Single Vent Kit (2SVKXXX0406)

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

    Regular Price: $88.12

    Special Price: $70.50

    Details
  4. Z-Flex 3" x 3' Gas Insul-Vent Double Wall Insulated Vent - Connector Kit (2ZIKXXX0303)

    Z-Flex 3" x 3' Gas Insul-Vent Double Wall Insulated Vent - Connector Kit (2ZIKXXX0303)

    Z-Flex 3" x 3' Gas Insul-Vent Double Wall Insulated Vent - Connector Kit (2ZIKXXX0303)

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

    Regular Price: $88.64

    Special Price: $70.91

    Details
  5. Z-Flex 7" Stainless Steel Aerocowl Round Base (2ARCORB07)

    Z-Flex 7" Stainless Steel Aerocowl Round Base (2ARCORB07)

    Z-Flex 7" Stainless Steel Aerocowl Round Base (2ARCORB07)

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

    Regular Price: $89.07

    Special Price: $71.25

    Details
  6. Z-Flex 5" x 5" x 4" Galvanized Y (2GAYXXX554)

    Z-Flex 5" x 5" x 4" Galvanized Y (2GAYXXX554)

    Z-Flex 5" x 5" x 4" Galvanized Y (2GAYXXX554)

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

    Regular Price: $89.63

    Special Price: $71.70

    Details
  7. Z-Flex 5" x 5" x 3" Galvanized Y (2GAYXXX553)

    Z-Flex 5" x 5" x 3" Galvanized Y (2GAYXXX553)

    Z-Flex 5" x 5" x 3" Galvanized Y (2GAYXXX553)

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

    Regular Price: $89.63

    Special Price: $71.70

    Details
  8. Z-Flex 10" x 2' 304 Stainless Steel Rigid Liner (2ZR321F1002)

    Z-Flex 10" x 2' 304 Stainless Steel Rigid Liner (2ZR321F1002)

    Z-Flex 10" x 2' 304 Stainless Steel Rigid Liner (2ZR321F1002)

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

    Regular Price: $89.95

    Special Price: $71.97

    Details
  9. Z-Flex 8" to 7" Stainless Steel Reducer (2RD8R7X)

    Z-Flex 8" to 7" Stainless Steel Reducer (2RD8R7X)

    Z-Flex 8" to 7" Stainless Steel Reducer (2IN3I4X)

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

    Regular Price: $90.06

    Special Price: $72.05

    Details
  10. Z-Flex 7" to 8" Stainless Steel Increaser (2IN7I8X)

    Z-Flex 7" to 8" Stainless Steel Increaser (2IN7I8X)

    Z-Flex 7" to 8" Stainless Steel Increaser (2IN7I8X)

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

    Regular Price: $90.06

    Special Price: $72.05

    Details

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Application
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Color
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Material of Construction
  1. Aluminum (387)
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  12. Z-Flex 18" Chimney Liner (1)
Venting Type
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  6. Aerocowls (5)
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  8. Intake Air Ducts (30)
  9. Chimney Liner Lengths (192)
  10. Nose Cones (4)
  11. Insulating Blankets (18)
  12. Decreasers (2)
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