Flexseal ICON push-fit couplings allow the connection of pipes on the interior of the pipe where external couplings may not be possible for a range of reasons. Flexseal ICON internal push-fit couplings solves problems like partially buried pipes, pipes that are sheared too close to a surface, or pipes that have concrete flat bottoms. A secure, watertight and permanent connection will be made that can be fit without any tools in around 30 seconds. This internal coupling passes pressure tests and it can be used on any pipe material, perfect for any temporary applications since this product can be removed and then re-used elsewhere with no issues. This coupling will suit pipes with small differences in internal diameters where pipe 1 is 93mm-98mm and pipe 2 is 99mm-103mm. Flexseal ICON 4 Inch Internal Push-fit Coupling for 93-98mm and 99-103mm Pipe EPDM ICP95-100