Where can I buy official shower filter cartridges? How often should I change the cartridges? How much do they cost?

1. Buy on Amazon: search " Shower Head Filter Cartridges" (ASIN B0H9SFDY1J gray / B0H7CRHBX1 black).

2. Replace every 3 months, or sooner if you notice strong chlorine smell or low water pressure.

3. Cost: $0.17/day, $59.98/year.

Is this filtered showerhead really effective? Should I use a TDS meter to test the water quality?

Our showerhead passed thousands of tests, removing 99.99% of chlorine, fluoride, and other impurities. TDS meters read charged salts; chlorine and fluoride don't affect conductivity, so TDS can't prove it.

Why is my product leaking?

1. Dripping when switching modes is normal—pressure resets, stops soon.

2. Connection dripping? Check the black washer sits flat; don't over-tighten. If needed, remove old tape, wrap 2-4 turns of Teflon tape.

Is this a high-pressure shower head?

Yes, my filter shower head is a true high-pressure head. Both shower heads utilize unique pressurization technology to provide strong water pressure even under low water pressure conditions, giving you a completely new showering experience.

How many spray modes does this 2-in-1 shower head combo have?

1. It offers 3 combination modes: handheld mode, rain mode, and handheld + rain mode. Suitable for single, double, and targeted showering.

2. It offers three handheld spray modes: rain mode, mist mode and rain mist mode.