AmeriVent 7RF Roof Vent Flashing, 20 in OAL, 17-7/8 in OAW, Galvanized Steel

The standard flashing fits flat to 5/12 pitch roof and is made of double-seamed construction for protection from leakage For a standard flashing with a 6 in skirt, the model number reads the size and EFFU or RFFU N/A