I was concerned they would come with no label based on the product photo so we believe this is what they claim. and label them somehow since we are using different micrometers calibrated for RV. Not only do all six filters come in labeled cellophane packaging, but each individual filter is also cellophane wrapped and tagged with Hydronix labels as we've come to expect. relief. We had just changed all of our filters in the RV (5 micron, 1 micron and carbon) when the water pressure dropped to almost zero. Replacing three filters restored the water pressure. At first we tried replacing just the 5 microns but that wasn't enough so we replaced all three.
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