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The HydroGuard HDG-P117, by Hydronix, is an ideal replacement for the now-discontinued AP117RO, and is a drinking water filtration alternative to the AP117, which we recommend for whole house systems.
The HDG-P117 carbon filter has a particle retention size of 5 microns. This is a Granular Activated Carbon (GAC) filter that reduces unpleasant taste and odor from drinking water and has a flow rate of 3 gallons per minute (gpm). It has a 2.5" outside diameter (OD), an overall length of 10", and an operating temperature range of 48 to 100 degrees F. This carbon filter meets FDA CFR 21 regulations for materials and is suitable for use in cold water dispensing applications.