[jk999]

I used to have a 300 gpd  ro which had an inline tds meter . Now I have a 4040 ro can you get in line  tds  meters for them if so where can I get one from

[Spruce]

I used to have a 300 gpd  ro which had an inline tds meter . Now I have a 4040 ro can you get in line  tds  meters for them if so where can I get one from

Daqua - maybe ask Doug if he can supply you with the correct size push in T's that will adapt to your original system. Our 4040 outlet is 1/2" where the outlet on the 450 GPD was 1/4"