4" Kozy Kollar Exhaust Hood

Allowable Roof materials: three tab conventional shingles, architectural shingle, metal roof with solid substrate, and rolled roofing with solid substrate. Product Features: Easily installed from inside of a building by one person in 10 minutes Designed for 0 to unlimited pitch roof Works on conventional shingles, architectural shingles, and rolled roofing materials Forms a weather-tight seal on four sides, eliminating the problems caused by wind, rain or snow Install in any weather conditions Product Specifications: 4’’ Kozy Kollar EPDM rubber roof ange with heat resistance to 180 degrees Fahrenheit Molded around a .125 steel Main Fame with seven casehardened 1/4 - 20 female standoffs installed .105 Plated Sub Frame Seven 1/4 - 20 x 2.5’’ plated studs Seven 1/4 - 20 x 7/8’’plated couplings torqued to 3 foot pounds Size: 12.75’’ L x 9.25 W 1.5 oz tube of Permatex 2-A Roof Slope - Unlimited .040’’ 5052 Aluminum hood .040’’ 5052 Aluminum Damper .125’’ Aluminum Damper hinge pin Nylon hinge bushings #4 Galvanized welded wire mesh outlet Screen 3.90’’ exhaust pipe connection 17.61 square inch outlet without Screen 14.88 square inch outlet with Screen One 4’’ x .12 tension hose clamp