34mm To 48mm Expansion Tapered Rubber Plug

Description 34mm to 48mm Expanding Rubber Plug 2 Washers and Nut Bolt Expands to 40mm. Stock can change from stainless steel to nylon or brass. Commonly used to seal or block of 40mm pipe. Uses block off main drain in pool skimmer box. Block off pipes when servicing equipment that may be below water level. Block off pipes to find out if it stops pool losing water. The tapered plugs are not good if under pressure being tapered.