MadMax Trade Supply
Prices include the sales tax we pay at purchase (shown for Minnesota; your cart updates it for your ship-to state) and, where noted, shipping. No separate tax line. Order online; we email a secure payment link before anything ships.
Two tall white pleated pool filter cartridges on a concrete patio beside a pool filter tank.

Pool & Spa Filter Cartridges

Replacement cartridges for in-ground and above-ground pool filters and spa filters, plus common skimmer and pump baskets. Match the cartridge to the model number on your filter tank or the part number on the current cartridge. We quote cartridges in this category, not pool chemicals.

Shop 68 priced items

Price includes shipping and the sales tax we pay at purchase (shown for delivery to Minnesota; your cart updates it for your ship-to state). No separate tax line at checkout. Items marked "Shipping calculated before payment link" have shipping calculated and shown in your payment link before you pay. Typical delivery is a few business days in the contiguous United States. A delivery estimate is confirmed in your payment-link email. Images are representative; tap a picture to enlarge it.

Don't see your exact item? Request a quote for any item below — the form will include the SKU. Request a quote

More items (quote only)

ItemSKU (internal)Price
In-ground pool filter cartridge (by model)MM-PSF-001Price coming soon — request a quoteRequest a quote
Above-ground pool filter cartridge (by model)MM-PSF-002Price coming soon — request a quoteRequest a quote
Spa or hot-tub filter cartridge (by model)MM-PSF-003Price coming soon — request a quoteRequest a quote
Pool skimmer basket (by model)MM-PSF-004Price coming soon — request a quoteRequest a quote
Pump strainer basket (by pump model)MM-PSF-005Price coming soon — request a quoteRequest a quote

Attributes we list for each item: Cartridge or basket type, Filter or pump model, Diameter and length, End-cap style.

FAQ

How do I find the right cartridge?

Read the model on the filter tank or the part number molded on the cartridge end cap. Length, diameter and end-cap style also help if the number is worn off.

Do you sell chlorine or other chemicals?

This category is cartridges and baskets. Some chemicals have shipping limits. If you need a chemical, tell us the type and quantity and we will say whether we can quote it.

How often should a cartridge be replaced?

Follow the filter maker's guidance and your water conditions. Cleaning extends life; a torn or collapsed cartridge should be replaced.