ANSI Polypropylene Backing Flange: 225mmBFPA225
Table E Backing Flange Galvanised: 140mmBFGE140
Table E Backing Flange Galvanised: 180mmBFGE180
Table E Backing Flange Galvanised: 800mmBFGE800
ANSI Polypropylene Backing Flange: 400mmBFPA400