Pool Filter Replacement Parts
Laterals, Grids, Valves, O-Rings & Gauges for Sand, Cartridge & D.E. Filters
198 products
198 products
New OEM Pool Filter Replacement Parts
Aqua Pool Supply carries replacement parts for sand, cartridge, and D.E. pool filters from trusted brands like Pentair, Hayward, and Waterway. These small components do the heavy lifting inside your filter, and replacing a worn part lets you restore filtration and stop a leak without buying a whole new tank. Below you'll find the laterals, grids, valves, O-rings, gauges, and clamps that keep your system running clear.
Parts by Filter Type
The parts you need depend on which kind of filter you run:
Sand Filter Parts
The internal and flow-control components of a sand filter: laterals and the standpipe that distribute water through the sand bed, the multiport or backwash valve that directs flow, plus the valve's spider gasket, the sight glass, tank O-rings, and the drain cap. If sand is ending up in your pool, a cracked lateral is the usual culprit.
Cartridge Filter Parts
The components that seal and support a cartridge filter: the lock ring or clamp ring, tank O-ring, center core, manifold, air relief valve, and drain plug. When it's the pleated element itself that's worn, you'll want our replacement cartridges instead.
D.E. Filter Parts
The parts that hold and clean a D.E. filter: the grid assembly, top manifold, tension control clamp, backwash valve, air relief, and tank O-rings. Torn grids are a common cause of D.E. powder returning to the pool, and a fresh grid pack restores clean filtration.
Parts Common to Every Filter
A few components wear out regardless of filter type, including pressure gauges, air relief valves, tank and clamp O-rings, and drain plugs. The valves that control your filter's flow live in our dedicated multiport and backwash valves collection, so you can match the exact valve to your system.
Common Problems and the Parts That Fix Them
If something's off with your filter, these are the typical causes:
- Sand in the pool. Usually a cracked or broken lateral or standpipe in a sand filter.
- Leaks around the tank or valve. Most often a worn O-ring, gasket, or clamp.
- Cloudy water that won't clear. Frequently a torn D.E. grid or a worn-out cartridge.
- Pressure reading looks wrong. Commonly a stuck or failed pressure gauge.
- High pressure and weak flow. Often clogged media that needs cleaning or replacing.
Most of these are inexpensive fixes that head off bigger repairs down the road.
Finding the Right Part
Filter parts are model-specific, so the surest way to order correctly is to check the label on your filter tank for the brand, model, and serial number. O-rings, gaskets, laterals, and grids all vary by model and by year of manufacture, so matching those details before you buy saves a return. If you're not certain which version you need, reach out with your filter info and we'll help you confirm the right part. Our guide to which filter parts wear out and when is a helpful starting point too.
Need a Complete Filter Instead?
If a repair no longer makes sense, we carry full systems as well. Browse Pentair sand filters, cartridge filters, and D.E. filters to compare your options.
Need the part today? Aqua Pool Supply offers in-store pickup at our Phoenix, Scottsdale, and Las Vegas locations. Order online or stop in and we'll help you track down the right component.
Pool Filter Parts FAQs
How do I know if my sand filter laterals need replacing?
The clearest sign is sand returning to your pool, which usually means one or more laterals have cracked or broken. Laterals are best inspected during a sand change, and replacing a damaged one restores proper filtration and stops sand from passing through.
How long do D.E. filter grids last?
D.E. grids typically last several years, depending on use and maintenance. Replace them when the fabric tears, frays, or no longer holds D.E. powder evenly, which often shows up as cloudy water or powder coming back into the pool. A full grid pack restores fine filtration.
Can I replace filter O-rings myself?
Yes, O-rings are one of the easier parts to replace. Match the O-ring to your specific filter model, apply a pool-safe silicone lubricant, and seat it cleanly so it seals without pinching. A fresh, properly lubricated O-ring resolves most tank and valve leaks.
How do I find the exact part for my filter?
Check the label on your filter tank for the brand, model, and serial number, then match the part to that model. Because components like O-rings, laterals, and grids vary by model and year, confirming those details first ensures a correct fit. If you're unsure, contact us with your filter information and we'll help you identify the right part.
How often should I replace filter cartridges?
Most cartridges last a year or two with regular cleaning, though heavy use or poor water chemistry can shorten that. Replace a cartridge when the pleats are frayed or it no longer rinses clean and water clarity drops. You can find the right fit in our replacement cartridges collection.