Everbilt Mobile Home 14 in. x 25 ft. Insulated Flexible Duct R4.2 Black Jacket

Flexible duct products are performance-tested in accordance with industry standards to ensure reliability and years of service. Our core is tested (in accordance with ADC FD 72-R1) for actual installation static pressure / temperature performance. Polyester cores are also tested for microbial resistance by GEI per ASTM D6329-98. Vapor barriers are tested for permeation in accordance with ASTM test methods.