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Concentric Vent System
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Search Results (5)
DuraSeal®
Single-Wall and Double-Wall Special Gas Vent Boiler Applications
FasNSeal®
UL 1738 and ULC S636
Special gas vent system.
FasNSeal® W2
UL 1738 and ULC S636.
Double-wall special gas vent system
FasNSeal® Flex
The only flex Listed to UL 1738. UL 1777.
Flexible special gas vent system.
FasNSeal® 80/90
Combined Category I and IV venting for Gas-Burning Appliances.