Round Gas Vent Product Catalog
Specifications
DuraConnect II
Materials and Construction
.010” Double-wall aluminum ex inner
wall (two-ply .005”), .018” galvalume
outer wall, with twist-lock connections.
Clearances
1” to combustibles.
Diameters
3" - 6".
Listings
c-UL-us Listed to UL 441 and ULC/
ORD-C441 (MH14089).
DuraFlex AL
*updated*
Applications
DuraFlex AL (DFAL) aluminum exible
relining for masonry chimney. Use with
natural gas or liquid propane category
I, draft hood equipped appliances, and
appliances tested and listed to use Type
B Gas Vent. Applications include: natural
gas replaces, gas-red furnaces, boilers,
water heaters, and wall or space
heating applications.
Materials and Construction
010” aluminum
(2-ply of .005”).
Clearances
0” clearance to masonry.
Diameters
3”, 4”, 5”, 5 ½”, 6”, 7”, and 8”.
Listings
Listed to UL 1777 and
ULC S635.
c-UL-us 441 System
DuraConnect II
Double-wall connector pipe, UL approved as a Type B Gas Vent
segment, for use in conditioned and unconditioned attics and
crawl spaces. (Not to be enclosed and cannot penetrate through
walls, oors, or ceilings.) DuraVent’s DuraConnect II is known as the
“Contractor‘s Choice” for its ease of installation and durability.
DuraConnect II’s heavy-duty construction features precision twist-
lock connection, which provides ease of assembly or disassembly
without damage to the product.
The double-wall exible vent is certied as having the equivalent
thermal properties as Type B Gas Vent and can be used when a
Type B Gas Vent double-wall connector is required.
UL 1777 & ULC S635 System
DuraFlex AL
An economical venting system used for relining masonry chimney
for natural gas or liquid propane category I, draft hood equipped
appliances, and appliances tested and listed to use Type B Gas Vent
for a wide range of applications, including: natural gas replaces,
gas-red furnaces, boilers, water heaters, and wall or space heating
applications. Protects the masonry chimney from damaging eects
of ue product condensation.
800-835-4429 | DuraVent
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