GAF Master Flow Storm Collar 4"
GAF Master Flow Storm Collar 4"
The GAF Master Flow Storm Collar 4" is designed for use around pipes penetrating through roofs. This storm collar fits tight and prevents snow, water, and ice from penetrating around your piping job and weakening the surrounding structure. 28-gauge storm collars are adjustable for various roof pitches. This is the 4" Collar.
See "Related Products" below for more options.