Ball Valves are simply used to turn the pool water on and off. A common variety of pool valve found on pool plumbing. Relatively inexpensive to purchase, and simple to use. Good replacement valve for gate valves.
Flo Check Valves
True Union Spring Check valve. Easy entry removable body, for visual inspections or cleaning. Available in clear. Each valve is specially designed to be disassembled by unscrewing the nuts in line leaving the tail pieces solvent cemented to the pipe. This true union allows you to remove the body for repairs, or cleaning, even providing the opportunity to change the body or spring tension.
Jandy Neverlube / Gray Valves (Diverter Valves)
The Jandy Neverlube and Gray valves are used as diverter valves. They both can divert the water and send it in another direction of your swimming pool. The main difference between these two valves is that the Neverlube Valve requires no lubricant while the Gray valve will occasionally need lubricant added to the valve.
Multiport valves are used with there respective pool filters. Not all multiport valves work with all filters. It is important to choose one that fits onto your appropriate filter. Multiport valves are usually based on the number of valve positions. These positions include Filter, Backwash, Waste, Recirculate, Rinse, Closed, and Winter