What is this filter called?

AZAA

Silver Supporter
Apr 9, 2020
121
Gold Canyon AZ
Pool Size
12000
Surface
Plaster
Chlorine
Liquid Chlorine
I can’t get this filter to hold a prime so my pump won’t start. I know it needs a new O-ring but I don’t know the manufacturer or model # as it’s been painted over by a previous owner. All other equipment is Pentair. It is an inch or so larger than the Pentair pump O-ring. It would help my search if knew what to call the thing. Thanks
 

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1poolman1

In The Industry
Jul 14, 2014
2,921
Sacramento
I can’t get this filter to hold a prime so my pump won’t start. I know it needs a new O-ring but I don’t know the manufacturer or model # as it’s been painted over by a previous owner. All other equipment is Pentair. It is an inch or so larger than the Pentair pump O-ring. It would help my search if knew what to call the thing. Thanks
It appears to be this part you need:
 

proavia

LifeTime Supporter
TFP Guide
Feb 6, 2015
3,710
Chandler AZ
Pool Size
12300
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
CircuPool RJ-45 Plus
Yup - looks like an A&A Leafvac. You can take the lid and o-ring to most any local pool store and get a new o-ring.
Is there any writing on the black lid ring?

Be sure to thoroughly clean the canister mating surface as well as the lid mating surface. Use pool lube on the o-ring. And don't overtighten the lid as it could break the locking tabs on the canister.