Toilet Cistern Siphon Diaphragm Washer Rectangular (Pack of 2) SKU : 100379 Toilet Cistern Siphon Washer Replacement Rectangular, Holes as shown 5 1/2" x 3 5/16" 9mm Central Hole, 10.5mm Offeset Hole and 2 x 3mm (each side of centre) Holes Pack of 2 .
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