I cannot answer your question but be aware that Water Watch is not a filter - it provides no additional filtering over and above that of your main filter.
It is just a large reservoir to catch water and sound an alarm so you have time to stop the engine. If you ignore this alarm and continue to drive, the bowl will fill with water and the water will continue to the engine.
Garry
REMLR 243
2007 Range Rover Sport TDV6
1977 FC 101
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1973 Haflinger AP700
1971 Jaguar V12 E-Type Series 3 Roadster
1957 Series 1 88"
1957 Series 1 88" Station Wagon
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