
Bought because they are made in the USA and I am suspicious of Asian food and health products. Since they last 2x longer than standard imported filters, they're also a better deal since they're not 2x more expensive. Installation is easy, the instructions are clear and if you follow them, the job takes about 30 minutes. If you don't have a reverse osmosis key, order one, it's worth it. I used an oil filter tape to move the housing the required 1/4" inch. Then it unscrews easily. Put some petroleum jelly on the o-ring, then finger tight, done. By the way, APEC has very good customer service, if you are not sure about something and need an answer to a question.

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 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