These little guys make the life of an electronics master easy. I had no idea they existed until my landlord asked me to replace my old fixtures and I found they were using these fittings. I don't know how well this works with housing codes. But for my own purposes I still don't use them in 115V systems.
NANPU Compressed Air Filter Regulator Combo: Brass Element, Semi-Auto Drain, 0-150 Psi Gauge, And More
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NANPU Air Drying System With Double Filters And Pressure Regulator Combo For Clean And Controlled Air Supply
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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
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Filter under the sink Aquaphor Favorit ECO silver
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