10" T33 Carbon Filter w/ 1/8"Female Connection

CL10ST T-33 is the one with 1/8 or 1/4 or 3/8

CL1oRO T-33 is with 1/4 or 3/8.. fittings

Most RO system and ice maker are using 1/4 fittings.

We have not seen a 1/8 inline filter yet. 3/8 we do but that is mostly for a RO system with a 10+ gallon tank so the flow rate will be faster.