2Pcs Swimming Pool Winterization Plugs, 38mm/1.5in Rubber Expansion Gel Plug for Swimming Pool Spa Piping Winter Fittings Maintenance

Product Packaging---You will receive 2 swimming pool antifreeze caps. Size: about 38mm/1.5in.

Material---The winter cap is made of high-quality rubber, which has greater expansion and good sealing performance, and can be used for a long time.

Excellent performance---After the pool is drained, the rubber plug is used to block the pipe to prevent water from entering the pipe and causing freezing.

Multipurpose---Used as a rubber plug to block the oil skimmer, return water and cleaning lines to prevent water penetration in winter. It is also possible to test the pressure of the pool line, or stop the flow of water into the pool when maintaining the equipment.