PN21 Backing Flange Galvanised: 110mmBFG21110
Table D Backing Flange Galvanised: 1000mmBFGD1000
PN16 Backing Flange Stainless: 110mmBFS31616110
Table D Backing Flange Galvanised: 90mmBFGD/E090
DIN16 Backing Flange Galvanised: 125mmBFGDIN16125
PN16 Backing Flange Stainless: 280mmBFS31616280