We keep an extensive range of cartridge filter lids including Davey, Aquaswim, Onga, Quiptron, Spa-Quip, Monarch, P4, Hurlcon, Waterco, Zodiac, Waterlinx, Magnaflow, Emaux plus many more. Also included is the lock rings where applicable.
Diameters shown are measured to underside at the thread or O-ring position.
See below for details.
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![](https://d31wxntiwn0x96.cloudfront.net/bknzfa/productimages/501.jpg?width=180&height=140&etag="064bf67dcf9acdf9620db0a4a4d9979d")
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![](https://d31wxntiwn0x96.cloudfront.net/bknzfa/productimages/510.jpg?width=180&height=140&etag="72869605c98f2ba34b2e5e7d682f3b6b")
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![](https://d31wxntiwn0x96.cloudfront.net/bknzfa/productimages/2664.jpg?width=180&height=140&etag="72869605c98f2ba34b2e5e7d682f3b6b")
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![](https://d31wxntiwn0x96.cloudfront.net/bknzfa/productimages/516.jpg?width=180&height=140&etag="3a5d9219bdb25749874dbc915609c433")
![](https://d31wxntiwn0x96.cloudfront.net/bknzfa/productimages/518.jpg?width=180&height=140&etag="3a5d9219bdb25749874dbc915609c433")
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