SPEEDI- BOOT 8 in. W x 8 in. L to 8 in. Diameter Ceiling Box Register Vent Boot with Adjustable Hangers

SPEEDI-BOOT 8 in. x 8 in. x 8 in. Ceiling Box Register Boot can be easily and conveniently installed with its pre-drilled pilot holes and telescoping hanger arms. The boot features a dust and debris cover that helps keep dust and debris out of your HVAC system. The register boot is made of zinc-coated galvanized steel and designed for use with wood and metal studs and drop ceilings.