Pool Filter Cartridge 90 sq.ft PLF90A - 17 3/8in x 8 15/16in

In this review of the PLF90A pool filter cartridge, the bottom line is simple: this is a budget-friendly, high-capacity replacement for owners of compatible Hayward, Pleatco, Unicel and Sta-Rite systems who need reliable particle removal without paying OEM prices. The reviewer found the filter's 90 sq.ft filtration area and trilobal fabric deliver consistent clarity for routine pool maintenance, while monthly cleaning keeps flow and pressure where they should be. For anyone seeking a direct, dimension-matching replacement, this cartridge is worth considering.

Key Features

• Exact fit dimensions: The 17 3/8in length and 8 15/16in outside diameter match common housings so installation is straightforward and leak-free.
• Large filtration area: Ninety square feet of surface media provides extended run times between cleanings and better debris loading for clearer water.
• Trilobal filtration fabric: The material increases surface area and improves capture of fine particles like sand, dust and hair for cleaner circulation.
• 50 micron precision and certification: IAPMO testing to NSF/ANSI 50 ensures materials are safe and the media captures relatively fine sediment for residential pools.
• Wide compatibility: Designed to replace a range of models such as Hayward C900/CX900RE, Pleatco PA90 and Unicel C-8409, simplifying parts selection for many systems.
• Easy maintenance: The uniform fabric releases trapped debris readily during rinsing, making monthly cleanings fast and effective.

Who It's For

This cartridge is aimed at pool owners with single or multi-filter setups using Hayward C900-series, Pleatco PA90, Unicel C-8409 or similar housings who want a cost-effective replacement that matches OEM dimensions and performance. It suits people who prefer to maintain filter cartridges themselves and who perform routine monthly cleanings to preserve flow and life.

Those who should look elsewhere include owners of non-compatible filter housings or operators needing ultra-fine professional filtration under 50 microns; this cartridge is a residential-grade replacement and not marketed as a commercial microfiltration element.

Pros & Cons

Pros

• Strong value for money compared with OEM parts while maintaining comparable fit and filtration area.
• The trilobal fabric traps a wide range of debris and rinses clean easily, keeping maintenance simple.
• NSF/ANSI 50 certification offers reassurance about material safety and particle capture at roughly 50 microns.
• Compatible with many common models, reducing the hassle of finding a replacement part.

Cons

• Durability is mixed in user reports, so longevity may vary by pool conditions and maintenance frequency.
• Not intended for filtration needs finer than the stated 50 micron precision.

Specifications

Length	17 3/8in
Outside Diameter	8 15/16in
Top & Bottom Opening	4in
Filtration Area	90 sq.ft
Filter Material	Trilobal Filtration Fabric
Certification	NSF/ANSI 50 (IAPMO tested)
Compatible Models	Hayward C900/CX900RE, Pleatco PA90, Unicel C-8409, Sta-Rite PXC-95

Our Verdict

The PLF90A is a practical, cost-conscious replacement cartridge for residential pools that need a true 90 sq.ft element with OEM-style dimensions. It offers credible filtration performance thanks to the trilobal fabric and NSF/ANSI 50 certification, and it represents good value for routine maintenance cycles as long as the owner accepts some variability in long-term durability.

Frequently Asked Questions

Will this cartridge fit my Hayward C900 housing?
Yes, the PLF90A is sized to be compatible with Hayward C900 and CX900RE housings, matching the key dimensions.

How often should I clean the cartridge?
Monthly cleanings are recommended for optimal performance, though frequency depends on pool usage and debris loads.

Does it remove fine sand and sediment?
The media is rated around 50 microns and effectively captures sand, dust and fine sediment common in residential pools.