Hi-Cap Internal Stopend (White) by FloPlast £2.59 + VAT 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to basket The uPVC Grey High Capacity Stop-Ends are produced by FloPlast and come with either internal or exterior ends. These Stop Ends, which are simple to install, will enable a watertight end to a line of grey high capacity guttering.