POOLPURE PLF137A Pool Filter - 137 Sq.Ft, 4-Pack | Replaces PA137 & More

Overview

The POOLPURE PLF137A filter cartridge delivers reliable pool and spa filtration with a 137 sq ft filtration area. This 4-pack provides a convenient option for regular maintenance and compatibility with a range of common filter systems. Note: original manufacturers’ names and part numbers are provided for reference only, as POOLPURE operates as an independent brand.

Key specs at a glance

• Length: 32 3/4 inches
• Outer dimension: 7 inches
• Top opening: 3 inches
• Bottom opening: 3 inches
• Filtration area: 137 sq ft
• Filtration fabric: Trilobal filtration fabric

Filtration technology that matters

Featuring Dirt-Locking technology, the PLF137A aims to capture more debris and deliver cleaner water. The cartridge supports filtration down to roughly 50 microns, helping reduce hair, leaves, dust, sediment, and sand from your pool or spa, while maintaining steady flow for consistent cleansing.

• 3x debris capture versus standard cartridges
• Effective filtration down to ~50 microns
• Uniform trilobal fabric for reliable debris release during cleaning

Durability and lifespan

Built with a 25% thicker filtration fabric, chlorine-resistant end caps, and reinforced center support, the PLF137A is designed for longer service life under typical pool conditions. This combination supports robust performance across seasons.

• 25% thicker filtration fabric
• Chlorine-resistant end caps
• Reinforced center support
• Potential 20–30% longer service life

Maintenance tips

For optimal performance, clean the cartridges regularly—monthly is a common guideline—based on your system’s pressure readings. Important: this cartridge is not designed for backwashing, and backwashing may cause cracks or damage.

Certifications, trust, and testing

POOLPURE holds NSF/ANSI 50 certification and is verified by IAPMO. As a Pool & Hot Tub Alliance member, the brand aligns with industry standards for filtration performance. Real-world testing with athletes and media coverage underscores a focus on dependable water quality in demanding environments.

• NSF/ANSI 50 certified
• IAPMO verified
• PHTA member

Compatibility and packaging

Designed to fit models such as SmartFilter 550, BHCA5520MB, CA5500, CX1380REM, and other listed part numbers for reference. This is a compatible part, with original manufacturer names provided for reference only. The 4-pack offers ready replacements to keep your filtration running smoothly.