Click to expand Tap to zoom Kockney Koi Black Waste Ball Valves by Elite Koi Ltd Save £-10.87 £10.87 | / 1.5" - £10.87 2" - £15.78 1.5" 2" Size 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart The Kockney Koi ball valves are competetively priced for use with waste pipe. Available in 2" & 1.5"