Make sure you read the description and if you think 1/2 inch doesn't matter then think again. I have never bought a filter whose actual size differs from the advertised one. It just doesn't work. The filter rattles in a space not occupied by an undersized filter. How hard is it to make something 14x20x1 when you call it 14x20x1?
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 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 DFR-02 1/4" NPT Air Drying System - Double Air Filters, Air Pressure Regulator Combo - Semi-Auto Drain, Poly Bowl
20 Review