Designed for 2½-inch pool plumbing, this winterizing plug helps protect swimming pools and spas from freeze damage. After draining and blowing out your lines, simply insert and tighten the plug into return and drain openings to keep water from re-entering the pipes.
Built with stainless steel bolts and washers plus a durable plastic wing nut, it resists rust while creating a secure seal that helps prevent expanding ice from cracking your plumbing.