Inground & Above-Ground Swimming Pool Replacement Parts

Find the pool replacement parts you need to repair and maintain your inground or above-ground pool from Waterway, Zodiac/Polaris, Filbur, Speck, Pentair, Hayward, and Waterco. PST Pool Supplies stocks a broad range of wear and service parts — impellers, O-rings, union assemblies, DE filter grids, hose kits, feeder tubes, and stainless steel screws — starting from $9.90.

Key replacement parts in this collection include: pump impellers from Waterway and Speck that restore flow capacity to pumps whose impellers are worn, cracked, or clogged with debris — an impeller in poor condition significantly reduces pump performance and can lead to overheating. Union assemblies (Waterway and Pentair compatible) allow pumps and equipment to be disconnected from plumbing for service without cutting pipe — unions in older systems often develop slow leaks at their O-ring seats and should be replaced rather than resealed. DE filter grid sets from Filbur restore proper filtration to DE filters — DE grids with torn fabric or broken frames allow DE media to pass into the pool and must be replaced. Zodiac/Polaris hose kits and replacement hoses maintain proper traction and feed-hose connection for Polaris pressure-side cleaners. O-rings (standard pool equipment sizes) seal pump lids, union connections, and filter tanks — these are the most commonly replaced pool service parts. Stainless steel screws replace corroded hardware in pool equipment, ladder anchors, and handrail flanges. For pool plumbing fittings and valves, see our pool plumbing parts collection.

Keeping a small inventory of critical replacement parts on hand prevents multi-day equipment downtime when a part fails mid-season. The most important spares for any pool equipment room: the pump lid O-ring (leaks air into the pump housing and causes loss of prime), the filter tank O-ring or gasket (leaks under operating pressure), and the correct impeller for your pump model (critical if your pump loses flow suddenly). When ordering replacement parts, always confirm the model number of your equipment — Waterway, Pentair, Hayward, and Speck each manufacture multiple pump and filter variants with non-interchangeable internals. Cross-reference your pump's nameplate or existing part number to ensure fit.

Shop pool replacement parts at PST Pool Supplies and get your pool equipment back in service fast.