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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Z-Flex Z-Vent 8" to 22" Eccentric Increaser (2SVDIE0822)
Double Wall Stainless Steel, Category III Venting
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Regular Price:
$2,699.56
Special Price:
$2,159.64
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Z-Flex Z-Vent 8" to 14" Concentric Increaser (2SVDI0814)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$2,647.07
Special Price:
$2,117.66
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Z-Flex Z-Vent 8" to 14" Eccentric Increaser (2SVDIE0814)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$2,647.07
Special Price:
$2,117.66
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Z-Flex Z-Vent 16" to 30" Concentric Increaser (2SVDI1630)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$2,388.08
Special Price:
$1,910.47
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Z-Flex Z-Vent 16" to 30" Eccentric Increaser (2SVDIE1630)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$2,388.08
Special Price:
$1,910.47
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Z-Flex Z-Vent 8" to 12" Eccentric Increaser (2SVDIE0812)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$2,249.65
Special Price:
$1,799.73
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Z-Flex Z-Vent 16" to 26" Eccentric Increaser (2SVDIE1626)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$1,981.71
Special Price:
$1,585.37
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Z-Flex Z-Vent 22" to 24" Eccentric Increaser (2SVDIE2224)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$1,965.68
Special Price:
$1,572.54
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Z-Flex Z-Vent 8" to 12" Concentric Increaser (2SVDI0812)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$1,888.93
Special Price:
$1,511.15
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Z-Flex Z-Vent 18" to 20" Eccentric Increaser (2SVDIE1820)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$1,702.84
Special Price:
$1,362.28
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Z-Flex Z-Vent 20" to 22" Eccentric Increaser (2SVDIE2022)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$1,529.40
Special Price:
$1,223.52
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Z-Flex Z-Vent 20" to 22" Concentric Increaser (2SVDI2022)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$1,529.40
Special Price:
$1,223.52
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Z-Flex Z-Vent 8" to 10" Eccentric Increaser (2SVDIE0810)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$1,499.78
Special Price:
$1,199.83
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Z-Flex Z-Vent 14" to 20" Eccentric Increaser (2SVDIE1420)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$1,453.58
Special Price:
$1,162.87
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Z-Flex Z-Vent 16" to 22" Concentric Increaser (2SVDI1622)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$1,355.15
Special Price:
$1,084.12
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Z-Flex Z-Vent 16" to 20" Eccentric Increaser (2SVDIE1620)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$1,355.15
Special Price:
$1,084.12
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Z-Flex Z-Vent 16" to 22" Eccentric Increaser (2SVDIE1622)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$1,355.15
Special Price:
$1,084.12
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Z-Flex Z-Vent 18" to 20" Concentric Increaser (2SVDI1820)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$1,355.15
Special Price:
$1,084.12
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Z-Flex Z-Vent 20" to 22" Concentric Increaser (2SVSI2022)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$1,344.81
Special Price:
$1,075.85
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Z-Flex Z-Vent 20" to 22" Eccentric Increaser (2SVSIE2022)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$1,344.81
Special Price:
$1,075.85
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Z-Flex Z-Vent 8" to 10" Concentric Increaser (2SVDI0810)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$1,322.25
Special Price:
$1,057.80
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Z-Flex Z-Vent 14" to 18" Eccentric Increaser (2SVDIE1418)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$1,308.19
Special Price:
$1,046.56
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Z-Flex Z-Vent 12" to 18" Eccentric Increaser (2SVDIE1218)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$1,137.48
Special Price:
$909.98
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Z-Flex Z-Vent 10" to 16" Eccentric Increaser (2SVDIE1016)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$1,103.82
Special Price:
$883.06
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Z-Flex Z-Vent 16" to 18" Concentric Increaser (2SVDI1618)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$984.94
Special Price:
$787.96
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Z-Flex Z-Vent 16" to 18" Eccentric Increaser (2SVDIE1618)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$984.94
Special Price:
$787.96
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Z-Flex Z-Vent 10" to 14" Eccentric Increaser (2SVDIE1014)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$974.12
Special Price:
$779.30
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Z-Flex Z-Vent 10" to 16" Concentric Increaser (2SVDI1016)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$974.12
Special Price:
$779.30
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Z-Flex Z-Vent 14" to 16" Concentric Increaser (2SVDI1416)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$864.41
Special Price:
$691.53
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Z-Flex Z-Vent 14" to 16" Eccentric Increaser (2SVDIE1416)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$864.41
Special Price:
$691.53
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Z-Flex Z-Vent 12" to 18" Concentric Increaser (2SVDI1218)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$858.54
Special Price:
$686.84
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Z-Flex Z-Vent 12" to 16" Concentric Increaser (2SVDI1216)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$834.14
Special Price:
$667.32
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Z-Flex Z-Vent 6" to 12" Eccentric Increaser (2SVDIE0612)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$834.14
Special Price:
$667.32
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Z-Flex Z-Vent 6" to 12" Concentric Increaser (2SVDI0612)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$834.14
Special Price:
$667.32
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Z-Flex Z-Vent 10" to 12" Eccentric Increaser (2SVDIE1012)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$827.87
Special Price:
$662.30
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Z-Flex Z-Vent 7" to 12" Eccentric Increaser (2SVDIE0712)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$827.87
Special Price:
$662.30
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Z-Flex Z-Vent 16" to 20" Concentric Increaser (2SVSI1620)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$821.58
Special Price:
$657.27
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Z-Flex Z-Vent 16" to 18" Concentric Increaser (2SVSI1618)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$786.50
Special Price:
$629.20
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Z-Flex Z-Vent 10" to 14" Concentric Increaser (2SVDI1014)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$764.62
Special Price:
$611.70
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Z-Flex Z-Vent 22" to 24" Concentric Increaser (2SVSI2224)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$760.69
Special Price:
$608.56
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Z-Flex Z-Vent 22" to 24" Eccentric Increaser (2SVSIE2224)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$760.69
Special Price:
$608.56
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Z-Flex Z-Vent 12" to 16" Eccentric Increaser (2SVDIE1216)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$758.30
Special Price:
$606.64
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Z-Flex Z-Vent 12" to 14" Eccentric Increaser (2SVDIE1214)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$758.30
Special Price:
$606.64
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Z-Flex Z-Vent 7" to 12" Concentric Increaser (2SVDI0712)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$735.25
Special Price:
$588.20
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Z-Flex Z-Vent 12" to 22" Concentric Increaser (2SVSI1222)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$655.68
Special Price:
$524.55
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Z-Flex Z-Vent 7" to 10" Concentric Increaser (2SVDI0710)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$635.71
Special Price:
$508.56
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Z-Flex Z-Vent 6" to 10" Concentric Increaser (2SVDI0610)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$625.62
Special Price:
$500.49
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Z-Flex Z-Vent 12" to 14" Concentric Increaser (2SVDI1214)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$625.62
Special Price:
$500.49
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Z-Flex Z-Vent 10" to 12" Concentric Increaser (2SVDI1012)
Double Wall Stainless Steel, Category III Venting
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Regular Price:
$624.88
Special Price:
$499.89
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Z-Flex Z-Vent 18" to 20" Eccentric Increaser (2SVSIE1820)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$601.74
Special Price:
$481.39
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Z-Flex Z-Vent 18" to 20" Concentric Increaser (2SVSI1820)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$601.74
Special Price:
$481.39
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Z-Flex Z-Vent 12" to 20" Concentric Increaser (2SVSI1220)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$596.08
Special Price:
$476.86
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Z-Flex Z-Vent 16" to 18" Eccentric Increaser (2SVSIE1618)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$577.14
Special Price:
$461.71
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Z-Flex Z-Vent 6" to 10" Eccentric Increaser (2SVDIE0610)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$551.91
Special Price:
$441.53
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Z-Flex Z-Vent 12" to 18" Concentric Increaser (2SVSI1218)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$536.44
Special Price:
$429.16
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Z-Flex Z-Vent 9" to 10" Concentric Increaser (2SVDI0910)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$533.86
Special Price:
$427.10
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Z-Flex Z-Vent 5" to 8" Concentric Increaser (2SVDI0508)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$500.48
Special Price:
$400.38
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Z-Flex Z-Vent 14" to 16" Eccentric Increaser (2SVSIE1416)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$476.68
Special Price:
$381.34
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Z-Flex Z-Vent 12" to 16" Concentric Increaser (2SVSI1216)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$476.68
Special Price:
$381.34
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Z-Flex Z-Vent 10" to 16" Concentric Increaser (2SVSI1016)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$476.65
Special Price:
$381.33
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Z-Flex Z-Vent 12" to 16" Eccentric Increaser (2SVSIE1216)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$476.65
Special Price:
$381.33
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Z-Flex Z-Vent 8" to 14" Eccentric Increaser (2SVSIE0814)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$444.87
Special Price:
$355.90
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Z-Flex Z-Vent 12" to 14" Concentric Increaser (2SVSI1214)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$428.98
Special Price:
$343.19
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Z-Flex Z-Vent 12" to 14" Eccentric Increaser (2SVSIE1214)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$428.98
Special Price:
$343.19
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Z-Flex Z-Vent 10" to 14" Concentric Increaser (2SVSI1014)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$428.98
Special Price:
$343.19
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Z-Flex Z-Vent 10" to 14" Eccentric Increaser (2SVSIE1014)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$428.98
Special Price:
$343.19
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Z-Flex Z-Vent 6" to 12" Concentric Increaser (2SVSI0612)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$428.98
Special Price:
$343.19
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Z-Flex Z-Vent 6" to 8" Concentric Increaser (2SVDI0608)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$417.07
Special Price:
$333.66
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Z-Flex Z-Vent 8" to 14" Concentric Increaser (2SVSI0814)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$406.87
Special Price:
$325.50
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Z-Flex Z-Vent 5" to 7" Concentric Increaser (2SVDI0507)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$393.23
Special Price:
$314.58
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Z-Flex Z-Vent 8" to 12" Concentric Increaser (2SVSI0812)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$381.33
Special Price:
$305.07
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Z-Flex Z-Vent 7" to 12" Eccentric Increaser (2SVSIE0712)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$381.32
Special Price:
$305.05
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Z-Flex Z-Vent 10" to 12" Concentric Increaser (2SVSI1012)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$381.32
Special Price:
$305.05
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Z-Flex Z-Vent 10" to 12" Eccentric Increaser (2SVSIE1012)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$381.32
Special Price:
$305.05
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Z-Flex Z-Vent 8" to 12" Eccentric Increaser (2SVSIE0812)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$381.32
Special Price:
$305.05
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Z-Flex Z-Vent 7" to 12" Concentric Increaser (2SVSI0712)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$381.32
Special Price:
$305.05
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Z-Flex Z-Vent 9" to 10" Concentric Increaser (2SVSI0910)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$366.08
Special Price:
$292.86
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Z-Flex Z-Vent 9" to 10" Eccentric Increaser (2SVSIE0910)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$366.08
Special Price:
$292.86
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Z-Flex Z-Vent 6" to 8" Eccentric Increaser (2SVDIE0608)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$365.64
Special Price:
$292.51
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Z-Flex Z-Vent 7" to 8" Eccentric Increaser (2SVDIE0708)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$347.56
Special Price:
$278.06
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Z-Flex Z-Vent 7" to 8" Concentric Increaser (2SVDI0708)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$347.56
Special Price:
$278.06
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Z-Flex Z-Vent 6" to 10" Eccentric Increaser (2SVSIE0610)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$334.21
Special Price:
$267.36
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Z-Flex Z-Vent 6" to 10" Concentric Increaser (2SVSI0610)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$333.66
Special Price:
$266.93
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Z-Flex Z-Dens 6" Eccentric Increaser - 6" to 8" - White (2ZDI68)
Single Walled. Can be cut to length
Learn More
Regular Price:
$325.71
Special Price:
$260.57
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Z-Flex Z-Vent 6" to 7" Concentric Increaser (2SVDI0607)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$312.82
Special Price:
$250.25
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Z-Flex Z-Vent 6" to 7" Eccentric Increaser (2SVDIE0607)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$312.80
Special Price:
$250.24
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Z-Flex Z-Vent 7" to 9" Concentric Increaser (2SVSI0709)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$286.01
Special Price:
$228.80
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Z-Flex Z-Vent 5" to 6" Concentric Increaser (2SVDI0506)
Double Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$285.99
Special Price:
$228.79
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Z-Flex Z-Vent 7" to 10" Concentric Increaser (2SVSI0710)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$285.99
Special Price:
$228.79
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Z-Flex Z-Vent 8" to 9" Concentric Increaser (2SVSI0809)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$285.99
Special Price:
$228.79
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Z-Flex Z-Vent 8" to 10" Eccentric Increaser (2SVSIE0810)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$285.99
Special Price:
$228.79
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Z-Flex Z-Vent 7" to 9" Eccentric Increaser (2SVSIE0709)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$285.99
Special Price:
$228.79
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Z-Flex Z-Vent 8" to 10" Concentric Increaser (2SVSI0810)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$285.99
Special Price:
$228.79
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Z-Flex Z-Vent 6" to 9" Concentric Increaser (2SVSI0609)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$285.97
Special Price:
$228.78
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Z-Flex Z-Vent 6" to 8" Concentric Increaser (2SVSI0608)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$214.50
Special Price:
$171.59
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Z-Flex Z-Vent 6" to 8" Eccentric Increaser (2SVSIE0608)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$214.48
Special Price:
$171.58
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Z-Flex Z-Vent 5" to 8" Concentric Increaser (2SVSI0508)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$214.48
Special Price:
$171.58
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Z-Flex Z-Vent 7" to 8" Eccentric Increaser (2SVSIE0708)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$214.48
Special Price:
$171.58
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Z-Flex Z-Vent 7" to 8" Concentric Increaser (2SVSI0708)
Single Wall Stainless Steel, Category III Venting
Learn More
Regular Price:
$214.48
Special Price:
$171.58
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Z-Flex Z-Dens 5" Eccentric Increaser - 5" to 4" - White (2ZDI56)
Single Walled. Can be cut to length
Learn More
Regular Price:
$194.87
Special Price:
$155.89