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5/5

Replacement O-ring set for Pentair slimline  and  Watts  Flowmatic FH4200 SERIES – 10″ housings

O-rings are treated as consumables for filters, they can distort and become hard over time making it difficult to reseal a filter. A periodic change is recommended when refilling vessels to avoid leaks.

 

£12.38 Including Tax

Before ordering double check the groove inner diameter on the lip of the sump  and o-ring thickness by measuring as per the photos and confirm size matches the product dimensions

85mm inner diameter , 4mm cross section

Always use silicone plumbers grease liberally when fitting

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