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The Hayward Piston Knob, MPN RGX45K, is designed specifically for use with Hayward RegenX in-ground cartridge filters. This replacement part ensures proper operation and ease of use for pool maintenance professionals. It is compatible with the RG450 and RG700 models, making it a vital component for maintaining filter functionality.
This piston knob is essential for the efficient operation of Hayward RegenX filtration systems.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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