3 3 4 14 wall thickness range 4 3 2 inch dia 2 inch sleeve 2 number of clamp screw detailed description. Oz gedney type fsk single thru wall and floor seal size. Malleable or ductile iron with alky.
Vapor Retarders And Perm Ratings The International Residential Code Irc Defines Vapor Retarders As Class I Ii Home Insulation Insulation Types Of Plastics