This Hot Tub Non-Chemical Filter is Non-chemical hot tub “maxi” power filtering disk. Just put on top of your water return and enjoy clean, chemical-free water. For hot tubs up to 400 gallons. Typically lasts 3 – 5 months. NO INSTALLATION! NO PLUMBING!

This is a 4 inch disk.

For more info on this technology click on hot tub and natural pool filters.

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