industrial sealants
ameri vent 3fsp firestop support platetype b3 in
firestop support plate inside dia . 3 in . outside dia . 3 5 8 in . skirt 5 1 2 in . for use with type b gas venting br b features b ul li application for supporting type b gas vent starting at appliance level li li dia . in . 3 li li for use with type b gas venting li li inside dia . 3 li li item firestop support plate li li outside dia . 3 5 8 li li outside dia . in . 3 5 8 li li skirt in . 5 1 2 li li type b gas venting li li skirt 5 1 2 li ul