UNIVERSAL STRAINER HOLE PLUG. Replacement Strainer Hose Hole Plug for , , Summer Escape swimming pools that do not have plunger valves so you can replace the filters in the pumps. Replacement part for Pump models 530/1000 gph or smaller. These plugs are used for pool that take 1.25" diameter hoses that do not have plunger valves to stop the water during filter change. A brand-new, unused, unopened, undamaged item in its original packaging. Thank you for visiting our shop!