Pure FM-3333 filter system works well. However, such cases do not last long. On average a year or so. Luckily, they're inexpensive, so spending $15 a year on them isn't a disaster. However, this one replaces the one I bought less than 6 months ago. Pure they really need to build like they've done before so they at least survive the non-replaceable internal battery before leaking or restricting water flow to the point where they're useless. If you contact Pur about the warranty, you will be asked to return the system at your own expense. I have five filters left and when they run out I will buy a different brand of faucet filter.
PUR Reduction Replacement Filter - Certified Replacements for Optimal Water Purification
5 Review
AQUA CREST RF 9999 Replacement Compatible Water Filter
5 Review
Enhanced GE FXHTC Replacement Filter for Efficient System Performance
9 Review
π§ Enhance Water Quality with PUR Faucet Mount Replacement Filter
6 Review
NANPU DFR-02 1/4" NPT Air Drying System - Double Air Filters, Air Pressure Regulator Combo - Semi-Auto Drain, Poly Bowl
20 Review
Filter under the sink Aquaphor Favorit ECO silver
20 Review
NANPU Air Drying System With Double Filters And Pressure Regulator Combo For Clean And Controlled Air Supply
18 Review
NANPU 3/8" NPT Compressed Air Filter Regulator Combo Piggyback, 5 Micron Brass Element, Poly Bowl, Semi-Auto Drain, Metal Bracket, 0-150 Psi Gauge
26 Review