NINCF-10-QC-3/8, Nelsen Inline Filter 10" Carbon w/3/8" QC, IL10GACX38QC,with 3/8" tube connections.
Coconut Shell Carbon for better taste
Supplier Part #: IL-10W-C-EZ38* Special version ( not threaded ), instead has 3/8" John Guest QUICK Connect openings
Use with 3/8" O.D. tubing and Quick connect Fittings common on some newer RO units.
Please do not confuse with smaller 1/4" TUBING version ( 54GS10RO-JG
) more common on older Reverse Osmosis systems ( 4 stage and 5 stage )
Activated Carbon polishing post-Filter is the optional in-line carbon filter located above the system's RO membrane.
Information on Removing and Connecting the Tubing using Quick Connections,
see: How to Use Quick Connect ( or John Guest ) type Fittings - Video