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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.

20 Item(s)

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  1. Z-Flex 4" x 20' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0420)

    Z-Flex 4" x 20' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0420)

    Z-Flex 4" x 20' Length of Aluminum 2-Ply Liner (2GAXXXX0420)

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

    Regular Price: $124.26

    Special Price: $99.41

    Details
  2. Z-Flex 3" x 5' Smoothcore All Fuels Chimney Liner (2ZLSCXX0305)

    Z-Flex 3" x 5' Smoothcore All Fuels Chimney Liner (2ZLSCXX0305)

    Z-Flex 3" x 5' Length of Aluminum 2-Ply Liner (2ZLSCXX0305)

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

    Regular Price: $121.13

    Special Price: $96.90

    Details
  3. Z-Flex 5" x 5' Additional Length of Insul-Vent Pipe (2INSGAC0505)

    Z-Flex 5" x 5' Additional Length of Insul-Vent Pipe (2INSGAC0505)

    Z-Flex 5" x 5' Additional Length of Insul-Vent Pipe (2INSGAC0505)

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

    Regular Price: $117.90

    Special Price: $94.31

    Details
  4. Z-Flex 3" x 20' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0320)

    Z-Flex 3" x 20' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0320)

    Z-Flex 3" x 20' Length of Aluminum 2-Ply Liner (2GAXXXX0320)

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

    Regular Price: $115.89

    Special Price: $92.70

    Details
  5. Z-Flex 10" x 5' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX1005)

    Z-Flex 10" x 5' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX1005)

    Z-Flex 10" x 5' Length of Aluminum 2-Ply Liner (2GAXXXX1005)

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

    Regular Price: $115.76

    Special Price: $92.61

    Details
  6. Z-Flex 9" x 5' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0905)

    Z-Flex 9" x 5' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0905)

    Z-Flex 9" x 5' Length of Aluminum 2-Ply Liner (2GAXXXX0905)

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

    Regular Price: $106.40

    Special Price: $85.11

    Details
  7. Z-Flex 8" x 5' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0805)

    Z-Flex 8" x 5' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0805)

    Z-Flex 8" x 5' Length of Aluminum 2-Ply Liner (2GAXXXX0805)

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

    Regular Price: $104.75

    Special Price: $83.81

    Details
  8. Z-Flex 4" x 5' Additional Length of Insul-Vent Pipe (2INSGAC0405)

    Z-Flex 4" x 5' Additional Length of Insul-Vent Pipe (2INSGAC0405)

    Z-Flex 4" x 5' Additional Length of Insul-Vent Pipe (2INSGAC0405)

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

    Regular Price: $100.41

    Special Price: $80.33

    Details
  9. Z-Flex 4" x 15' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0415)

    Z-Flex 4" x 15' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0415)

    Z-Flex 4" x 15' Length of Aluminum 2-Ply Liner (2GAXXXX0415)

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

    Regular Price: $98.81

    Special Price: $79.05

    Details
  10. Z-Flex 7" x 5' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0705)

    Z-Flex 7" x 5' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0705)

    Z-Flex 7" x 5' Length of Aluminum 2-Ply Liner (2GAXXXX0705)

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

    Regular Price: $98.43

    Special Price: $78.75

    Details
  11. Z-Flex 3" x 15' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0315)

    Z-Flex 3" x 15' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0315)

    Z-Flex 3" x 15' Length of Aluminum 2-Ply Liner (2GAXXXX0315)

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

    Regular Price: $92.52

    Special Price: $74.01

    Details
  12. Z-Flex 5.5" x 10' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX05.510)

    Z-Flex 5.5" x 10' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX05.510)

    Z-Flex 5.5" x 10' Length of Aluminum 2-Ply Liner (2GAXXXX05.510)

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

    Regular Price: $92.31

    Special Price: $73.84

    Details
  13. Z-Flex 6" x 5' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0605)

    Z-Flex 6" x 5' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0605)

    Z-Flex 6" x 5' Length of Aluminum 2-Ply Liner (2GAXXXX0605)

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

    Regular Price: $92.10

    Special Price: $73.69

    Details
  14. Z-Flex 5" x 10' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0510)

    Z-Flex 5" x 10' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0510)

    Z-Flex 5" x 10' Length of Aluminum 2-Ply Liner (2GAXXXX0510)

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

    Regular Price: $86.02

    Special Price: $68.82

    Details
  15. Z-Flex 4" x 10' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0410)

    Z-Flex 4" x 10' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0410)

    Z-Flex 4" x 10' Length of Aluminum 2-Ply Liner (2GAXXXX0410)

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

    Regular Price: $73.37

    Special Price: $58.70

    Details
  16. Z-Flex 3" x 10' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0310)

    Z-Flex 3" x 10' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0310)

    Z-Flex 3" x 10' Length of Aluminum 2-Ply Liner (2GAXXXX0310)

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

    Regular Price: $69.16

    Special Price: $55.33

    Details
  17. Z-Flex 5.5" x 5' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX05.505)

    Z-Flex 5.5" x 5' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX05.505)

    Z-Flex 5.5" x 5' Length of Aluminum 2-Ply Liner (2GAXXXX05.505)

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

    Regular Price: $58.66

    Special Price: $46.93

    Details
  18. Z-Flex 5" x 5' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0505)

    Z-Flex 5" x 5' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0505)

    Z-Flex 5" x 5' Length of Aluminum 2-Ply Liner (2GAXXXX0505)

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

    Regular Price: $54.25

    Special Price: $43.40

    Details
  19. Z-Flex 4" x 5' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0405)

    Z-Flex 4" x 5' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0405)

    Z-Flex 4" x 5' Length of Aluminum 2-Ply Liner (2GAXXXX0405)

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

    Regular Price: $47.91

    Special Price: $38.33

    Details
  20. Z-Flex 3" x 5' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0305)

    Z-Flex 3" x 5' Length of Aluminum 2-Ply Chimney Liner (2GAXXXX0305)

    Z-Flex 3" x 5' Length of Aluminum 2-Ply Liner (2GAXXXX0305)

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

    Regular Price: $45.82

    Special Price: $36.66

    Details

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