So I have a double table filter. This is a great filter system, but changing filters can be a hassle. First, make sure you have a business key. Not me. never received So I had to use my tiny hands and body to unscrew it. Second, the sealing ring. You won't know it needs to be replaced until you take the filter apart. You can do this before ordering a replacement, or cross your fingers and hope all is well. If it doesn't need to be replaced, clean it thoroughly. Take a paper towel and wipe dirt and water off it. Also clean the area where the O-ring will be used. I used paper towels. A few times it leaked because the o-ring kept coming loose from the last screw. water is everywhere. Much luck
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