I have used them before as I raise tropical fish and also drink water which I recommend. My water has 500 times more iron than recommended and is sometimes orange even after a whole house filter and water softener/air conditioner. I change about every 10-12 months or when the reverse osmosis system is just dripping.
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NANPU Compressed Air Filter Regulator Combo: Brass Element, Semi-Auto Drain, 0-150 Psi Gauge, And More
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