PN21 Backing Flange Galvanised: 315mmBFG21315
PN21 Backing Flange Galvanised: 560mmBFG21560
ANSI Polypropylene Backing Flange: 280mmBFPA280
Table D Backing Flange Galvanised: 315mmBFGD315
ANSI Polypropylene Backing Flange: 40mmBFPA040