V350-U Metalflex® Air Duct Uncompressed crimped one end

This UL® 181 duct is used as supply, return or exhaust. It solves the need for a very strong yet bendable duct.

Duct UL V350-U crimped uncompressed Spec Sheet

Metalflex® is UL® tested and labeled according to UL 181. This is the strongest duct we make.