i ordered a 100 gpd upgrade from them a few months back, and it turned up fine.
when i fitted it to my existing 200 gpd ro, the new membrane was reading about 28 out which is not correct.
i then emailed ro-man who said it may be a faulty check valve and would send me one, they didnt.
i found another check valve at home and fitted it and the reading was still the same, so emailed them again, a couple of times, and they never returned the message !!!
so make your own mind up, i know i wont be using them again..