Only you know if it is. But do yourself a favor: If you do it, don't go low-end. It will drive you crazy. Also, be sure to get a cell with a bigger capacity than your pool. A cell rated for a 20,000 gallon pool would be my guess for a minimum. Also, even though you can shock with your SWCG ("Boost" setting), don't. Your cell will live longer. Most manufacturers recommend a higher CYA/Stabilizer level of 60-80ppm. You should plan on maintaining a chlorine level of at least 5% of the CYA level.

PoolSean is one of very best experts on SWCG systems.