Name: Swimming Pool Antifreeze Plug Material: PP material (anti-oxidation, corrosion resistance) Delivery quantity: 5 pieces Product size: 1.5 inches Product color: white Applicable places: large, medium and small swimming pools, baths and plastic film swimming pools Protect the pipeline: Winterizing plug can block the water return pipe to prevent rainwater from entering the frost and causing the pipeline to rupture, and protect the swimming pool from damage. With rubber ring: To ensure sealing performance, 5 pieces winter plugs can meet different needs, suitable for massage bathtub accessories, swimming pool accessories, SPA accessories. Easy to install and use: directly block the return port of the pipe, no need to use additional auxiliary fasteners, it only takes a few minutes to operate easily. High-quality material: Pool Winter expansion plugs are made of plastic, conform to standard specifications, and are scalable to ensure strict sealing performance and prevent leakage. Wide