This is a Chinese counterfeit 3M product. Physically, it's a bit smaller, so it should have a lower capacity, even if the ads suggest more. I bought it to try and extract the calcium from pool water. In advertising it could be 10,000 gallons. Never used. It turned out (from the 3M website) that it only prevents limescale build-up on metal surfaces, but not on other (e.g. ceramic) surfaces. It doesn't actually remove calcium. I assume it will work as a cheap replacement for the 3M "filter", I really don't know.
NANPU Compressed Air Filter Regulator Combo: Brass Element, Semi-Auto Drain, 0-150 Psi Gauge, And More
21 Review
NANPU 1/2" NPT Air Drying System - 5 Micron Particulate Filter, 0.01 Micron Coalescing Filter, Air Pressure Regulator Combo - Semi-Auto Drain, Poly Bowl W/Metal Gauge
23 Review
NANPU DFR-02 1/4" NPT Air Drying System - Double Air Filters, Air Pressure Regulator Combo - Semi-Auto Drain, Poly Bowl
20 Review
NANPU 1 FRL Air Filter Regulator Lubricator Combo With 0-150 Psi Gauge, 5 Micron Brass Element, Poly Bowl & Semi-Auto Drain - Metal Bracket Included
20 Review