Home / Plumbing / Compression / Large F 1″ Brass Backnut Customer matched zone "UK" View basket “20Mm X 15Mm Poly Shank Adaptor” has been added to your basket. Large F 1″ Brass Backnut£0.07 This product is available for pickup in Orpington. Large F 1" Brass Backnut quantity Delivery Store Collection SKU: 35310WC01 Category: Compression Product ID: 6940 Reviews Related products 3/4″ Bsp Blank Nut £0.94 Add to basket 15Mmx12Mm 3 Part Reducing Set £0.51 Add to basket 8Mm Copper Olives £0.15 Add to basket 15Mmx10Mm-3 Part Reduc Set £0.62 Add to basket