Grefilt C1200 Pool Filter Cartridge 120 sq.ft — 30-Micron Trilobal Media, Heavy-Duty End Caps

Grefilt C1200 is a 120 sq.ft pool filter cartridge built with 30-micron trilobal filtration fabric and heavy-duty end caps for longer-lasting, finer filtration in compatible cartridge systems.

This replacement cartridge is designed to fit many popular cartridge filter housings and provide dependable particle removal without compromising flow. Constructed from thick 5 oz trilobal fibers and a reinforced core, the Grefilt C1200 aims to reduce clogging, resist deformation under pressure, and deliver extended service intervals compared with standard cartridges. The product has been tested to NSF/ANSI 50 standards for materials safety and is sized to match commonly used C1200-type filters.

Which systems will this Grefilt cartridge work with?

The Grefilt C1200 is made to replace many widely used 120 sq.ft cartridges. It mirrors the dimensions and port size of established C1200-style filters so it slips into housings designed for this format. Still, always confirm your current cartridge measurements before ordering.

• Common cross-references: Hayward Star Clear Plus C1200, Pleatco PA120, Hayward CX1200RE, Unicel C-8412
• Physical dimensions: 23 1/4" length, 8 15/16" outside diameter, 4" top & bottom opening
• Works in many single- and multi-cartridge pool filter tanks built for C1200-size replacements
• Manufacturer names are referenced for compatibility only; this is a Grefilt replacement cartridge

How fine is the filtration and how does it affect cleaning frequency?

This cartridge uses a 30-micron rating with an upgraded trilobal fiber weave that captures finer particles than many standard cartridges. The structure increases surface area and particle capture efficiency, which helps slow how quickly the media clogs. As a result, you can expect longer intervals between rinses versus lower-grade cartridges, depending on pool usage and debris load.

• Filtration rating: 30 microns for small particle removal
• Trilobal fabric: 40% more fiber branches for improved capture
• Reduced clogging leads to extended cleaning cycles under similar conditions
• Stable flow profile avoids excessive pressure spikes during normal operation

What builds quality and durability into the Grefilt C1200 cartridge?

The cartridge combines heavy-duty 5 oz trilobal filtration fabric, reinforced ABS end caps, and an integrated support core to resist collapse and wear. These components are chosen to maintain shape under backwash and pump pressure while extending usable life relative to thinner, lower-density media. The overall design helps preserve filtration performance across many seasons.

• 5 oz trilobal fabric for thicker, more durable filter media
• High-strength ABS end caps to resist cracking or distortion
• Integrated support core for even pleat support and longer service life
• Estimated life extension up to ~30% compared to standard cartridges

Is this cartridge safe for pools and spas?

The Grefilt C1200 has been tested to NSF/ANSI 50 standards for materials safety, indicating its components were evaluated for pool and spa contact. That certification applies to the materials used in the cartridge, ensuring they meet established guidelines for safe use in aquatic environments. Always follow local regulations and manufacturer instructions when installing and servicing filters.

• NSF/ANSI 50 tested materials suitable for pool and spa environments
• Designed to avoid releasing harmful substances into pool water
• Use per standard pool maintenance and safety practices

Who is this for: The Grefilt C1200 cartridge is aimed at pool owners and service technicians who need a durable, high-capacity replacement for C1200-style filter systems. It's a good fit for residential and light-commercial pools that want finer particle removal, longer cleaning intervals, and a reinforced cartridge built to resist pressure-related deformation. Verify dimensions and compatibility with your filter tank before purchasing to ensure a proper fit.