Patented Aquamor DI system design. Deionization for spot-free, process, and rinse-water purity. Mixed-bed ion exchange reduces dissolved ionic minerals (TDS). Not a particulate, taste-and-odor, or microbiological treatment - specify downstream of softening, carbon, and reverse osmosis where used.

Model	DI21
Part Number	112343
Brand	Aquamor
Segment	DI Systems (Water Treatment)
Configuration	Single-cartridge
Application	Small lab and home aquarium duty
Max Flow Rate	0.25 GPM (1.0 LPM)
Resin Volume	50 cu in
Capacity	460 grains · 7,900 ppm-gallons
Dimensions (W x H x D)	11.50 in W x 15.51 in H x 5.50 in D
Inlet / Outlet	1/2 in CTS 5/8 in OD stem (3/4 in and 1 in MNPT on request)
Operating Pressure	20 to 125 PSI
Operating Temperature	35 to 100 F
Filter Material	Polypropylene
Manifold Material	Black Nylon 66
Monitoring	Resilite monitoring device (120 V) tracks cartridge exhaustion

Service life scales with feed-water TDS. To estimate output before breakthrough, divide the rated ppm-gallons capacity by your feed TDS in ppm. Example at 200 ppm feed TDS, the DI21 (7,900 ppm-gallons) provides roughly 40 gallons of deionized output. Replace cartridges when the Resilite monitoring device indicates near-exhaustion or upon conductivity breakthrough.

Estimate service life for your feed water

DI Systems carry no NSF certification - they are specified as a finishing or final-purity ion-removal stage, not for particulate, taste-and-odor, or microbiological reduction. Recommended feed TDS under 500 ppm. Resilite is a registered trademark of Clack Corporation.

Specifications subject to change - data as of June 2026. Full engineering specifications and replacement-cartridge details available on request.