Hayward StarClear Plus 120 sq ft Cartridge Filter
Best overall — The single-element filter a credentialed outlet actually tested, at the cheaper of its two identical SKUs
Sold in 3 filter sizes on this listing: 90 sq ft, 120 sq ft, 175 sq ft — this page is the 120 sq ft. Check the size before you add to cart.
🏆 Winner — The Best Single-Element Cartridge Pool Filters (2026): StarClear vs Clean & Clear vs Jandy CS
⚔️ Matchup — Hayward StarClear Plus 120 sq ft Cartridge Filter vs Pentair Clean & Clear RP 100 sq ft Cartridge Filter
⚔️ Matchup — Hayward StarClear Plus 120 sq ft Cartridge Filter vs Hayward StarClear 50 sq ft Cartridge Filter
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Sold and shipped by Pool Supplies Superstore · 30-day refund/replacement · read 2026-10-08
Specs
| Filter area | 120 sq ft |
| Elements | 1 (single-element) |
| Pool type | In-ground |
| Closure | Threaded single knob — no clamp band |
| Warranty | 1 yr parts, no labor on the W3 online SKU |
Pros
- The only single-element filter in this roundup hands-on tested by a credentialed outlet, and Bob Vila's Best Overall
- $246 cheaper than the identical 120 sq ft filter sold under the W3C1200 SKU on the same listing
- Single-knob closure with no clamp band or bolts, which is genuinely quicker to open than a clamp ring
- In stock at the cheap SKU while the expensive one runs to single units
- 6.9% critical rate on the deepest owner record in the category
Cons
- Its headline 4.6★ stars across 955 is POOLED across five variants from 90 to 175 sq ft — it does not describe this filter alone
- Three separate SKUs exist for this one 120 sq ft size, $246 apart, and nothing on the listing explains why
- Owners report the internal tie rod rusting within two seasons and the exterior chalking in sun within three
- One owner describes the closure threads stripping on a ten-year-old unit and the top leaving the tank hard enough to injure him
- Several owners could not remove the cartridge at all — on a filter class sold on being easy to clean
Arrival damage, a rusting tie rod, and a seized cartridge on a filter sold as easy to clean
66 of the pooled 954 ratings were critical (6.9%) at the August read, signed in 2026-08-26, no Vine. Arrival damage recurs; the tie rod rusts within two seasons on the larger sizes; several owners could not lift the cartridge out at all. One ten-year-old unit's threads stripped and the top left the tank, injuring its owner — service life rather than a defect, and the reason we published a separate guide on filters as pressure vessels. · critical reviews read August 2026
“Sparkling clear water and required no filter changes. I live in a dusty desert environment so there is a severe particulate challenge for any filter device. I am enormously happy with the small size. It is tiny compared to the 120 gpm going through it. Now to the problem. The exterior has already deteriorated. It is exposed to sunlight. The surface is discolored, uneven and is chalkish.”— an engineer, 3★, Amazon · Verified owner
Pro review “Right after installation, we noticed a major improvement in water clarity and jet pressure throughout the pool.”Hands-on tested on a residential pool (Best Overall); rated Installation 4.8/5, Performance 5/5, Maintenance 5/5, Value 5/5. Quote re-verified verbatim on the live page 2026-09-04.— Tony Carrick, Paul Rankin & Stephanie Cronk, Bob Vila
FAQ
Who is the Hayward StarClear Plus 120 sq ft Cartridge Filter for?
You want the filter with the most independent coverage in the category and you are willing to read a size selector carefully enough to save $246 on the identical unit.
What do owners say about the Hayward StarClear Plus 120 sq ft Cartridge Filter?
4.6★ across 955 owner ratings (Amazon, read 2026-10-25 · listing-wide base). What owners complain about: Arrival damage, a rusting tie rod, and a seized cartridge on a filter sold as easy to clean
Who sells the Hayward StarClear Plus 120 sq ft Cartridge Filter on Amazon, and can it be returned?
Sold and shipped by Pool Supplies Superstore, when we read the listing on 2026-10-08. Amazon's returns line read: 30-day refund/replacement. Sellers and return terms can change, so check both on the listing before you buy.
What is the warranty on the Hayward StarClear Plus 120 sq ft Cartridge Filter?
1 yr parts, no labor on the W3 online SKU
Record
- — The base is pooled across five size variants — 90, 120 in three separate SKUs, and 175 sq ft — spanning $853.97 to $1,699.99 on one review pool. So 4.6 across 954 describes a family with a two-fold price spread, not this filter.
- — Added out of the single-element cartridge field, where the finding is that the size selector is not a price ladder — the sizes do not scale in cost the way the square footage suggests.
Warranty — and what changes if you buy it on Amazon
1 yr parts, no labor on the W3 online SKU · you are buying this on Amazon
Read it yourself: Hayward warranty document · we read it . Terms change without announcement, so treat this as a dated snapshot. How warranty works by buy path →
✓ Safety: no active recall — No CPSC recall for any filter in this roundup (full database, 9,966 records, read 2026-08-26). A cartridge filter is a PRESSURE VESSEL: shut off the pump, open the manual air relief valve and wait for water rather than air before touching the closure — see /pool-school/pool-filter-pressure-vessel-safety/. This line's closure is a THREADED single knob rather than a clamp band, and an owner reports the threads stripping on a ten-year-old unit.
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Data last verified: 2026-10-25. Ratings are real, dated reads — never scraped or invented. Full methodology and monetization disclosure: how we test.