By Waterway
Part # 400-6621
Alternate Part #'s 4006621, 17-270-1220, WW4006621
Drain Plug Assy, Waterway Crystal Water, W/O-Ring, Old Style. Replace or Substitute for the Drain Elbow Ass'y (400-6610).
*This is the drain cap and o-ring only.
will this screw drain plug fit my 520 sq in Waterways filter? Mine is 1 year old...
Mine has been leaking and not sure the threads are good
Hello Dug, the correct drain plug for your Waterway Crystal Clear model 520 cartridge filter(newer) will be part number 4742-119. I have also emailed you an estimate that you can convert to an order if you would like. Item is currently in stock and ready to ship.
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