eco-filtration stock a large range of 43mm solvent weld fittings also known as black 40mm domestic waste or 1.5″ waste. Within our extensive range, we stock all sizes of solvent weld Elbows, Valves, Tee Branches, Blank Endcaps, Internal Bungs, and a huge range of Reducing/Joining Bushes and more. All the products can be used in a multitudes of industry such as the Pond and Koi trade, Plumbing, Building and Hydroponics just to name a few.  All our products are manufactured in the UK to a very high quality and ensure customer satisfaction regardless of the industry or use of application.