
The only water supply option supplied with this kit is to connect to a faucet. 1/4" compression fittings are not particularly common, especially if you need to connect a water line to a poppet valve or connect to a hose fitting. You could just put a 3/8" straight FIP in the compression fittings to use the cartridge .the braided hose is standard, but to connect it to a standard hose fitting, for example, you have to pay an additional 25.00 for the installation - so the cost of the filter doesn't seem entirely worthwhile.But does the job.

NANPU Compressed Air Filter Regulator Combo: Brass Element, Semi-Auto Drain, 0-150 Psi Gauge, And More
21 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 DFR-02 1/4" NPT Air Drying System - Double Air Filters, Air Pressure Regulator Combo - Semi-Auto Drain, Poly Bowl
20 Review