Selkirk 208424 Support Box, 8", #8T-SB HELLOFALL10 Works with any standard sprinkler

Works with any standard sprinkler timer

Double HH quality ratchet jacks are precision engineered to get the job done

A minimum of a 2 minute contact time is required

While you’re likely most concerned about controlling flies

Selkirk 208424 Support Box, 8", #8T-SB HELLOFALL10 Works with any standard sprinklerThe Support Box is intended for use when installing a Sure Temp chimney in an a frame, in a mobile home, or in a ceiling under a narrow section of roof. It provides a finished installation at the ceiling level and will support up to 20 feet of 8" diameter chimney. The part also can be used to provide shielding from insulation when installed in an unoccupied attic space. The support box assembly is comprised of a black box designed for installation