1× Insulator sleeve for temperature control

and fertilizer residue from the combo electrode

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fresher-tasting ice and drinking water with the Culligan IC-100A

X10 Hot Tub & Spa Pre-Filter | KDF + Coconut Carbon | 10,000 Gal Hose Filter for Pools & Spas 033663005006 1× Insulator sleeve for temperatureX10 Hot Tub & Spa Pre Filter Fill Your Hot Tub with Cleaner, Purer Water The X10 Water Filter is a purpose built spa pre filter (hose filter for hot tubs) that removes heavy metals, chlorine, iron, rust, hydrogen sulfide, and other contaminants from your fill water before they ever enter your spa. Whether you're filling from tap, well, or lake water, the X10 dramatically reduces the impurities that damage heater elements, jets, pumps, and spa shells,