Superior Contractor's 50-Piece Bulk Outside Air Kit - Collar Only Kit

The Superior Contractor's 50-Piece Bulk Outside Air Kit is a super handy way to get your wood burning appliance set up right. This is just the collar part of the kit, and it's designed to fit pretty much all Superior and Astria wood burning appliances out there, which is awesome. You get fifty of these 4-inch diameter collars in one case, making it a smart choice for contractors. The outside termination piece has a neat screen built in to keep critters from wandering in where they shouldn't be. You'll find the hardware you need for the inside collar right there in the box, so you're mostly ready to go, just remember to grab your own aluminum flex duct and gear clamps to finish the job.