Grefilt Pool Filter Cartridges C5030 32.75 in x 7 in 4-Pack — 524 sq.ft, 30-Micron Filtration

These replacement cartridges are built for above-ground and in-ground cartridge systems that accept 32 3/4" x 7" filters with 3" top and bottom openings. Designed as a direct-fit compatible option for many popular models, they combine a dense trilobal microfiber fabric with rugged ABS end caps and an internal support core to resist collapse under pressure. The result is improved particle removal, fewer cleanings, and longer service life compared with basic cartridges.

Will these cartridges fit my Hayward or SwimClear filter?

If your current cartridge measures about 32 3/4" long with a 7" outside diameter and 3" openings, these Grefilt C5030 cartridges are likely compatible. They are made to match dimensions used by many major brands so you can swap them in without modifying the housing.

• Compatible references: Hayward CX1280XRE, SwimClear C5020/C5025/C5030
• Replaces common aftermarket parts like Pleatco PA131-PAK4 and Unicel C-7494
• Confirm your existing cartridge length, diameter, and opening size before purchasing

How fine is the filtration and how does it affect maintenance?

Each cartridge uses a 30-micron rating combined with a trilobal 5 oz microfiber to trap fine debris while keeping flow balanced. The trilobal fiber structure increases branching and surface area so particles lodge in the media rather than clogging quickly, stretching time between cleanings.

• 30-micron nominal filtration for small particles like silt and pollen
• Trilobal fabric with more branching improves capture efficiency
• Reduced clogging means fewer rinses and longer cleaning intervals

How durable are these cartridges and what extends their lifespan?

Grefilt cartridges combine a thicker 5 oz filter media, reinforced ABS end caps, and an integrated support core to resist deformation and extend usable life. The construction is intended to withstand typical pool pump pressure and deliver consistent performance through many seasons.

• Thickened 5 oz filtration fabric for wear resistance
• High-strength ABS end caps prevent cracking and leaks
• Internal support core maintains shape under flow and pressure

Are these cartridges safe for pool and spa water?

Materials used in the Grefilt C5030 set have been tested to NSF/ANSI 50 standards, indicating they meet accepted safety criteria for pool and spa equipment components. That helps ensure the filter materials do not introduce unsafe substances into your water while performing particulate removal.

• NSF/ANSI 50 tested materials for pool and spa use
• Designed to avoid releasing harmful contaminants into the water
• Suitable for family pools when installed and maintained properly

Who is this for: Pool owners, service technicians, and property managers who need a reliable, higher-capacity compatible cartridge for 32 3/4" systems will benefit from this 4-pack. Choose Grefilt C5030 when you want a robust aftermarket replacement that balances fine filtration, strengthened construction, and broad compatibility with well-known cartridge models.