Doheny's Pool Pro Deluxe Multi-Element Quad Cartridge Filter
The one to skip — The only filter here sold by its own brand — and the lowest-scoring one in the roundup
Contender — The Best In-Ground Cartridge Pool Filters (2026): SwimClear vs Clean & Clear Plus vs Crystal Water
Specs
| Filter area | 525 sq ft |
| Elements | 4 (multi-element) |
| Pool type | In-ground |
| Warranty | Not stated on the listing |
Pros
- Sold directly by Doheny's own store, the only unit here not routed through a third-party seller
- The cheapest 520–525 sq ft filter in the roundup, about $690 under the Pentair 520
Cons
- 2.5★ is the lowest score in this roundup by a wide margin
- Seven ratings is too thin to be confident even about the bad news
- Both rivals at this size score higher, and the Hayward 525 does it on a base of 244
The top manifold cracks — two of the three one-star reviews with text say so, one under three years in with no replacement parts on offer
4 of 7 ratings are one-star (the histogram reads 54%), the worst rate here though on a base too thin to weigh · critical reviews read September 2026
FAQ
Who is the Doheny's Pool Pro Deluxe Multi-Element Quad Cartridge Filter for?
Almost nobody, at this rating. It is here because it is the only filter in the category sold by the brand itself, which is exactly what every warranty in this post asks for — and the product underneath does not hold up.
What do owners say about the Doheny's Pool Pro Deluxe Multi-Element Quad Cartridge Filter?
2.5★ across 7 owner ratings (Amazon, read September 2026 · too thin to judge). What owners complain about: The top manifold cracks — two of the three one-star reviews with text say so, one under three years in with no replacement parts on offer
What is the warranty on the Doheny's Pool Pro Deluxe Multi-Element Quad Cartridge Filter?
Doheny's publishes no warranty term for the Doheny's Pool Pro Deluxe Multi-Element Quad Cartridge Filter — we looked for one from the maker and record the absence rather than guess. Buy it somewhere with a return window you trust.
Does the Doheny's Pool Pro Deluxe Multi-Element Quad Cartridge Filter come with a manufacturer warranty?
Doheny's publishes no warranty document anywhere we can find, so there is no manufacturer term to hold them to beyond the listing itself and the marketplace's own returns window. Nobody can check what does not exist — that is the finding rather than a gap in our research.
Record
- — Filter area corrected 425 to 525 sq ft: the linked listing B086H55KTG sells only the 525 sq ft size at $1,159.99, which matches doheny.com's 525 price. The price was right and the spec was wrong. The "cheapest quad in the roundup" pro was false (Rx Clear and XtremepowerUS 425s are ~$700) and became the cheapest 520-525; the "every rival at this size has a deeper base" con was false (Pentair 520 is 3.3★ across 6) and was reworded. Critical share corrected from 3 of 7 to 4 of 7 one-star: the histogram (32/14/54) only reproduces the 2.5 average with four one-star ratings.
- — Review base read: 2.5★ across 7; a size menu; 4 visible reviews, no free-product (Amazon Vine) reviews, all US. So the rating describes this one product, bought by US owners. Our listed rating was not changed in this pass.
Warranty — and what changes if you buy it on Amazon
Doheny's publishes no warranty term for this product. We looked for one from the maker and record the absence rather than guess.
Doheny's publishes no warranty document anywhere we can find. There is no term to hold them to beyond the listing itself and the marketplace’s own returns window. Nobody can check what does not exist — that is the finding, not a gap in our research.
✓ Safety: no active recall — Pressure vessel — stop the pump and bleed air before opening the clamp.
Size your pool first → ·All pool gear →
Data last verified: September 2026. Ratings are real, dated reads — never scraped or invented. Full methodology and monetization disclosure: how we test.