UL 181 Flexible Foil Duct, 4 in OD x 50 ft L, Aluminum/Polyester

UL Foil Duct, Flexible, Series: 181, 4 in Outside Diameter, 50 ft Length, Aluminum/Polyester, NFPA Certified, 1 in Pitch, For Low to Medium Operating Pressures in HVAC Systems

Manufacturer: BUILDER'S BEST
Model Number: 110244
UPC: 722048102446