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?     Asked on 3/15/2015by Colleen

Are all locknuts on the Waterway Clearwater Cartridge filters the same size? Mine cracked so I purchased another one are they the same size cause it dosent fit or can I repair mine
 Reply

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.
 Reply


?     Asked on 5/17/2015by Theresa Hurley

Will this fit a Proline Cartridge?
 Reply

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.
 Reply


?     Asked on 7/30/2018by Sharon

Looking for 511-7221 lock nut assy. With no luck. Is there an alternate part?
 Reply

A  Answered on 7/30/2018 by InyoPools Product Specialist Lennox H.

Hi, Sharon. Unfortunately, there is no alternate replacement for this part.
 Reply


?     Asked on 6/7/2019by Terese J Flynn

Is there an o-ring that goes inside this nut assembly?
 Reply

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. 
 Reply

  • Commented on 6/9/2019 by Product Owner

    Thank you so much!!
     Reply


?     Asked on 8/31/2019by mike

Will this be in stock anytime soon.
 Reply

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. 
 Reply


?     Asked on 6/26/2020by Inyo Visitor

is there any replacement or a collar that will work in place of discontinued nut assemply
 Reply

A  Answered on 11/11/2020 by InyoPools Product Specialist Hector F.

Hello, unfortunately, this part is no longer manufactured and has no listed replacement. You can try and contact the manufacturer Waterway to double-check for any other options however you may want to consider a new complete filter. 
 Reply