FI RST 12LR WD B W3 MS Drukregelventielen Clamp Assembly Heavy Series Size blank filter Element Clamp Assembly Heavy Series Size 5S Ø42mm Polyamide W3 Cover Plate Glass Fibre Outer Diameter (mm): 102 Retaining Ring with Captive Seal with Cutting Ring & Union Nut Steel Zinc Nickel Plated