2 pieces 1.5 inch threaded pool and spa return line winter plugs, filter drain plug with threaded O-ring for pool and spa return line. Protect the pipeline: The winter plugs can block the water return pipe to prevent rainwater from entering and freezing, which can cause the pipeline to burst and protect the pool from damage. With a rubber ring: To ensure sealing performance, the 5-piece winter plugs can meet different needs, suitable for massage bathtub accessories, pool accessories, and spa accessories. Easy to install and use: Block the return pipe port directly; no need to use additional tools. It only takes a few minutes to operate easily. + Wide range of applications: Suitable for garden pools, swimming pools, etc. Skimmer plugs can be used as pipe plugs to seal oil skimmers, return pipes, and detergent pipes. High-quality material: The pool winter expansion plugs are made of plastic, meet standardized specifications, and are scalable to ensure strict sealing performance and prevent leakage. Features: [Scope of application] This product is suitable for massage bathtub accessories, pool accessories, and spa accessories. [High quality] Fine workmanship, smooth surface, wear resistance, aging resistance, and long service life. [Material] The plug is made of high-quality, corrosion-resistant material with good durability and stability. [Easy to use] Threaded connection, easy to install and use, a direct replacement for the old or broken one. [Sealable] With a rubber ring, it has a strong seal and will not damage the return pipe due to leakage. Threaded pool and spa return line 2 pcs 5 pcs Show product Show product