I originally bought this unit 6 years ago. The entire kit originally cost less than $100 (about $85), with the filters ranging from $40 to $50. I didn't see a big improvement with it. I'm not too pleased that the cost of replacement filters has more than doubled and is now more than what I paid for the entire unit. There are better options out there that last longer, have more filter options, and are cheaper to maintain. how the filter costs/changes. Do yourself a favor and check out alternative filter options.
NANPU Air Drying System With Double Filters And Pressure Regulator Combo For Clean And Controlled Air Supply
18 Review
Filter under the sink Aquaphor Favorit ECO silver
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
NANPU DFR-02 1/4" NPT Air Drying System - Double Air Filters, Air Pressure Regulator Combo - Semi-Auto Drain, Poly Bowl
20 Review