I am using Osim filter too. Only the adaptor with 4 screws can be fitted to the 水龍頭 of RC. I think it's not the best way to use this adaptor as it cannot fix into the 水龍頭 as properly as the others.
[quote:e4a675e534="LW"]I am using Osim filter too. Only the adaptor with 4 screws can be fitted to the 水龍頭 of RC. I think it's not the best way to use this adaptor as it cannot fix into the 水龍頭 as properly as the others.[/quote]
a/. The tap must be in the middle of the adaptor (i.e. its distance from form screw must be the same)
b/. Screw tight the adeptor first
c/. Put back the filter set