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Bosch Therm gas and propane tankless water heaters and Bosch Powerstream electric tankless water heaters.

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  1. Z-Flex 4" x 50' Length of 1-Ply Aluminum Duct (1TLXXXX0450)

    Z-Flex 4" x 50' Length of 1-Ply Aluminum Duct (1TLXXXX0450)

    Z-Flex 4" x 50' Length of 1-Ply Aluminum Duct (1TLXXXX0450)

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

    Regular Price: $152.86

    Special Price: $122.29

    Details
  2. Z-Flex 5" x 40' Length of 1-Ply Aluminum Duct (1TLXXXX0540)

    Z-Flex 5" x 40' Length of 1-Ply Aluminum Duct (1TLXXXX0540)

    Z-Flex 5" x 40' Length of 1-Ply Aluminum Duct (1TLXXXX0540)

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

    Regular Price: $149.63

    Special Price: $119.70

    Details
  3. Z-Flex 2" x 40' Length of 1-Ply Aluminum Duct (1TLXXXX0240)

    Z-Flex 2" x 40' Length of 1-Ply Aluminum Duct (1TLXXXX0240)

    Z-Flex 2" x 40' Length of 1-Ply Aluminum Duct (1TLXXXX0240)

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

    Regular Price: $145.13

    Special Price: $116.10

    Details
  4. Z-Flex 4" x 45' Length of 1-Ply Aluminum Duct (1TLXXXX0445)

    Z-Flex 4" x 45' Length of 1-Ply Aluminum Duct (1TLXXXX0445)

    Z-Flex 4" x 45' Length of 1-Ply Aluminum Duct (1TLXXXX0445)

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

    Regular Price: $142.96

    Special Price: $114.37

    Details
  5. Z-Flex 5" x 35' Length of 1-Ply Aluminum Duct (1TLXXXX0535)

    Z-Flex 5" x 35' Length of 1-Ply Aluminum Duct (1TLXXXX0535)

    Z-Flex 5" x 35' Length of 1-Ply Aluminum Duct (1TLXXXX0535)

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

    Regular Price: $138.23

    Special Price: $110.58

    Details
  6. Z-Flex 2" x 35' Length of 1-Ply Aluminum Duct (1TLXXXX0235)

    Z-Flex 2" x 35' Length of 1-Ply Aluminum Duct (1TLXXXX0235)

    Z-Flex 2" x 35' Length of 1-Ply Aluminum Duct (1TLXXXX0235)

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

    Regular Price: $133.75

    Special Price: $107.00

    Details
  7. Z-Flex 4" x 40' Length of 1-Ply Aluminum Duct (1TLXXXX0440)

    Z-Flex 4" x 40' Length of 1-Ply Aluminum Duct (1TLXXXX0440)

    Z-Flex 4" x 40' Length of 1-Ply Aluminum Duct (1TLXXXX0440)

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

    Regular Price: $133.06

    Special Price: $106.44

    Details
  8. Z-Flex 3" x 50' Length of 1-Ply Aluminum Duct (1TLXXXX0350)

    Z-Flex 3" x 50' Length of 1-Ply Aluminum Duct (1TLXXXX0350)

    Z-Flex 3" x 50' Length of 1-Ply Aluminum Duct (1TLXXXX0350)

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

    Regular Price: $131.48

    Special Price: $105.18

    Details
  9. Z-Flex 5" x 30' Length of 1-Ply Aluminum Duct (1TLXXXX0530)

    Z-Flex 5" x 30' Length of 1-Ply Aluminum Duct (1TLXXXX0530)

    Z-Flex 5" x 30' Length of 1-Ply Aluminum Duct (1TLXXXX0530)

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

    Regular Price: $126.82

    Special Price: $101.46

    Details
  10. Z-Flex 3" x 45' Length of 1-Ply Aluminum Duct (1TLXXXX0345)

    Z-Flex 3" x 45' Length of 1-Ply Aluminum Duct (1TLXXXX0345)

    Z-Flex 3" x 45' Length of 1-Ply Aluminum Duct (1TLXXXX0345)

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

    Regular Price: $123.72

    Special Price: $98.97

    Details

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  1. Remove This Item Venting Type: Intake Air Ducts
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