Fitting Size: This Q-Series filter is a replacement filter and must be used with an existing Q-Series head. The Q-Series heads are available in 1/4" Quick-Connect fittings, 1/4" NPT female threads, or 3/8" NPT female threads.
Q5750:
This system uses the proven performance of softening resin to remove scaling minerals.
The disposable resin cartridge is easily replaced by your personnel.