Hayward PLUG WINTER 2.5" THRD W/ORING

The Hayward 2.5‑inch threaded winter plug with O‑ring is a heavy‑duty winterizing component designed to seal large return lines, suction ports, or other threaded pool fittings during the off‑season. Its threaded body provides a secure mechanical seal, while the integrated O‑ring ensures a tight, leak‑free fit that prevents water from entering or exiting the line once the system is winterized. This helps protect plumbing from freeze damage by allowing the lines to remain dry or properly air‑locked throughout winter. Built from durable materials that withstand cold temperatures and chemical exposure, it’s a reliable choice for closing larger in‑ground pool systems and maintaining proper winter protection.