Does anybody know the correct part number for the pentair / swimquip U3 /8650 Skimmer float valve o-ring? I have tried several that claim to fit, and the width is correct but they all seem to be about 1/4 - 1/2 inch too big in circumferance, including the one that came with the pentair replacement float valve. I have tried 35505-1273 and other random rings from Leslie's etc except for the Hayward. I finally resorted to cutting the ring to fit and crazy gluing the ends back together.
