The SSWB-3 series is 4.25 gallon unit
Potential silver Capacity - 60 t.o.
Maximum Volume capacity - Primary 150 gal/ Secondary 375 gal
Maximum Flow Rate -  200ml/min




The ST-WD is 16.75"
Potential Silver Capacity - 60 t.o.
Maximum Volume Capacity - 300 gallons
Electrolyte backup - 1,000 gallons
Maximum Flow Rate - 3 liters/hour



The ST-WR is the replacement cell for the ST-WD





The ST-WDC is 11.75"
Potential Silver Capacity - 30 t.o.
Maximum Volume Capacity - 150 gallons
Electrolyte backup - 500 gallons
Maximum Flow Rate - 1.5 liters/hour


The ST-WCR is the replacement cell for the ST-WDC




The Wall Mount is an option for both the ST-WD and ST-WDC