This was recommended by 3M as a replacement for the discontinued A1 RV/Marine filter. It's not like this. It is longer, so it may not fit the original place. The filter is rated at 1.5 gpm at pressures up to 125 psi. At 40-50 psi in an RV, this equates to a trickle of water of about 1/2 gallon or less per minute. Throw in twice the price of the old A1 and it just isn't a suitable replacement.
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