A  Answered on 3/16/2015 by InyoPools Product Specialist Robert M.

Hello Colleen - The nut assembly (511-7221) is the same for all of the Clearwater series. The Clearwater II series has a different nut assembly (550-2060). I am unaware of a way to repair a broken lock nut.
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A  Answered on 5/18/2015 by InyoPools Product Specialist Lennox H.

Theresa, This can fit Proline Cartridge Filter's since some Waterway filters are also under the Proline name. You'll have to call Waterway at 805.981.0262 to verify.
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A  Answered on 7/30/2018 by InyoPools Product Specialist Lennox H.

Hi, Sharon. Unfortunately, there is no alternate replacement for this part.
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A  Answered on 6/7/2019 by InyoPools Product Specialist Lennox H.

Hi, Terese. The Lid O-ring goes around the Lid, not this Nut Assy. 
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• Commented on 6/9/2019 by Product Owner

  Thank you so much!!
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A  Answered on 9/2/2019 by InyoPools Product Specialist Lennox H.

Hi, Mike. This item has been discontinued by the manufacturer, so it will not be back in stock. 
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