This black PVC boss adaptor from FloPlast is ideal for carrying waste safely and cleanly away from your home. Flo Plast offer a comprehensive choice of systems and products, in a range of sizes and colours, to suit all tastes and applications. This flanged rubber boss adaptor is used in conjunction with either an SP583 Short Boss Pipe, an SP581 boss pipe or an SP319 strap boss to connect a waste pipe into a 110mm soil pipe. It can also be used inside the boss shoulders of other fittings such as junctions. This adaptor is a push fit joint that is sealed by the moulded rubber flanges on the outer edge. For more information on connecting waste pipes into soil pipes, visit our step-by-step instruction page.You can also watch our short instructional video detailing how to use the various boss fittings that are available.