Pentair Clear Pro TechnologyPentair TR60CP 63 GPM Clear Pro technology, 25inch x 1 . 5 inch Port THE #1 SAND FILTER IN THE WORLD IS NOW CAPABLE OF POLISHING POOL WATER LIKE NEVER BEFORE Thanks to patented ClearPro Technology, Triton II now produces dazzling water clarity. However, Triton II remains blissfully simple, requiring less maintenance than either cartridge or D. E. filters. Just an occasional backwashing with a simple turn of a valve for the clearest water, year after