[pure tech]

The pre filters on my 300gpd RO (3x100gpd membranes) need replacing soon.
I see that Gardiners sell sets of 3 for 10 pounds but I am wondering if there is a compromise in the quality of one of these filters.
After the sediment and carbon block filters I have been using a ChlorPlus activated carbon block filter which on its own is more expensive than the complete sets of three that Gardiners and John Hewitt sell.
Am I wasting money using the ChlorPlus or do these cheap sets run the risk of damanging the membranes?

[Frankybadboy]

ive used these and all ok.

[elite mike]

ive used these and all ok.

no probs here either

[pure tech]

Thanks guys.
Does anyone know why the expensive ChlorPlus filter is recommended if the cheap sets are doing the same job?

[Mist A Bit]

i think that more expensive filter is for fish tanks i use 1 sediment filter and 2 carbon filters