Description
Replacement filter cartridge element designed for Hayward C900/CX900RE pool filters. The cartridge provides mechanical filtration for residential pools and spas and is intended as a direct replacement to restore original fit and function. It is used in Hayward-style multi-cartridge filter housings and is suitable for typical pool sanitation systems.
Quick Answer: What Is the Hayward CX900RE?
The Hayward CX900RE is a replacement filter cartridge: Hayward C900 Replacement Cartridge Element. It is brand new, ships in 1-2 business days, and is backed by the Hayward manufacturer warranty.
Hayward CX900RE Specifications
| Brand | Hayward |
|---|---|
| Equipment Type | Replacement Filter Cartridge |
| Model Number | CX900RE |
| Pool Type | In-Ground |
| Product Line | StarClear & SwimClear |
Key Features
- NSF certified when used in compatible Hayward filters
- Premium 4 oz. media for effective debris capture
- Molded and extruded cores for hydraulic efficiency
- Colored end caps with molded part number for identification
- Sold in 4-pack options for multi-cartridge filters
How It Works
Filter valves, replacement cartridges, D.E. grids and filter media keep an existing filter performing like new. Multiport and slide valves direct water for filter, backwash, rinse, waste and recirculate. Cartridges and grids are the filtering surfaces themselves, and media (sand, glass, zeolite or D.E.) does the filtering in sand and D.E. filters.
How to Choose the Right Replacement Filter Cartridge
- Cross-reference by the filter manufacturer and model number, then confirm dimensions: length, outside diameter, and top and bottom hole size for cartridges.
- For valves, match the filter tank thread or flange, port size and spacing.
- For media, follow the filter label for the type and pounds of media required.
- Replace grids or cartridges as complete sets for even flow.
If you are replacing an existing part, the fastest way to confirm compatibility is to match the brand and model number on the old equipment. Send us the model number or a photo of the label and our team will help confirm the CX900RE is the right fit before you order.
Installation and Safety
Turn off the pump and release all filter pressure before opening a tank or changing a valve. Follow the filter manufacturer's instructions for O-rings, clamp torque and media fill height. Never add D.E. to a sand or cartridge filter.
Maintenance Tips
- Clean cartridges with a garden hose and soak in filter cleaner periodically.
- Check valve spider gaskets for wear if water bypasses to waste.
- Replace cracked grids immediately; D.E. returning to the pool is a sign of a torn grid.
- Keep spare O-rings on hand.
What's Included
This listing is for the Hayward CX900RE as described in the specifications above. Plumbing, wiring, unions and accessories are not included unless they are listed in the product name or specifications.
Built for Homeowners, Pool Pros and Property Managers
- Homeowners: match your existing model number, then reach out if you want a second set of eyes on compatibility before you order.
- Pool service pros and builders: order quickly, track every shipment, and reorder common parts for your routes and builds.
- Property managers and commercial pools: standardize equipment across properties and plan replacements with help from our team.
White Paper
Frequently Asked Questions About the Hayward CX900RE
How do I find the right replacement cartridge?
Use the filter brand and model or the OEM cartridge part number, then verify dimensions on the product specifications.
How long do cartridges last?
Typically one to three seasons depending on bather load, cleaning frequency and water chemistry.
How much sand does my filter need?
Check the filter label or manual; it lists the type and pounds of media required.
Is this the genuine Hayward part?
Yes. It is brand new Hayward equipment (model CX900RE) covered by the manufacturer warranty. Warranty terms vary by product and application; see the manufacturer documentation or ask our team.
