Adaptor Kit comprises of: 1x Stub Flange, 1x Coupler, 1x Gasket (representation), 1x Backing Ring, 1x Bolt Set. Drilled to BS EN 1092-1:2007 Table 13. Please note: Sizes 250 and 315mm have sections of Pipe Butt-Fused to the moulding. Dimensions of Pupped Fittings should be used subject to a +/– 5mm tolerance due to the nature of the fabrication process. Standard pup leg lengths: 0.5m in sizes up to 400mm; 1.0m in sizes 450mm to 1200mm.