Basket waste with overflow This basket strainer waste is finished in a luxurious brushed copper and comes complete with an overflow. Constructed from stainless steel and polypropylene for a durable build, the 90mm waste is a perfect choice for any kitchen design. Outlet thread size: 40mm (1 ½ “) 5 year guaranteeHigh-quality parts and precision engineering put these products together and we want you to be confident of that, so to put your mind at ease we cover you with a 5 year long guarantee.