Question..........don't the screws go through the wall and screw into the niche? If so what keeps the niche from out of alignment? This ring is junk in my setup I guess because of poor quality, everything else looks brand new after 9 years.
12k IG Fiberglass, Pentair Intelliflo, Intellichlor I/C 40, Quad 60 DE filter. TF 100 test kit
12k IG Fiberglass, Pentair Intelliflo, Intellichlor I/C 40, Quad 60 DE filter. TF 100 test kit