
The female connector fittings are plastic and do not form a strong secure connection, even if a threaded strap is used it will still allow air to pass through. These connectors should be metal like most others. I don't know if it was just my fault that the left side doesn't close properly. The rest of the device is well built so I don't know why they chose to make the port connections out of plastic.

NANPU Compressed Air Filter Regulator Combo: Brass Element, Semi-Auto Drain, 0-150 Psi Gauge, And More
21 Review

π§ NANPU 1/2" NPT Compressed Air Filter Regulator Combo Piggyback with Auto Drain, 5 Micron Brass Element, Poly Bowl, Metal Bracket, and 0-150 psi Gauge
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

NANPU DFR-02 1/4" NPT Air Drying System - Double Air Filters, Air Pressure Regulator Combo - Semi-Auto Drain, Poly Bowl
20 Review

Nordic Pure Honeywell FC100A1037 Replacement
10 Review

π¨ Filtrete FAPF024: The Ultimate Air Cleaning Filter for a Healthier Home
12 Review

π Nordic Pure 20x25x4 Pleated Furnace Filter
10 Review

π¬οΈ Nordic Pure 16x20x1 Pleated Air Filter 16x20x1M12 6 Pack - High Performance Filtration Solution
10 Review