I have had 2 Culligan filter housings before. Both dripped from the pressure release button after about three years. I bought this because it doesn't have a check valve (my system already has a check valve) and because the pressure release button is different (and hopefully won't leak anytime soon. Other reviewers said they had to use extra Teflon tape on the threads. Twice I've had used what I thought was extra tape and it leaked on one side.The third time I used A LOT of tape.This time there was no leak.
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