The Manual Temperature Control Kit contains the valve’s necessary for manual temperature control of solar pool heating systems. A 3-port diverter valve is manually adjusted to turn solar on and off. Includes premium Pentair lube-free valve’s, 2? (1) Pentair 3-Port Solar Valve w/ Drain Down, CPVC, 2? (1) Pentair 2-Port Check Valve, CPVC, 2? (2) Pentair 2-Port Isolation Valve, Positive Seal, CPVC, 2? A LIFETIME OF PERFORMANCE AT AN ECONOMICAL PRICE. Pentair lube-free valves have excellent flow characteristics and are manufactured to strict quality standards. They never require lubrication. Constructed of durable CPVC & provides a lifetime of superior performance. All Pentair valves are easily installed and simple to use. When paired with Pentair valve actuators, they’re the perfect solution for fully automated operation. Maintenance-free PTFE coated diverter seal. Withstands pressure up to 150 psi. Used for diverting, shut-off or mixing applications. Accepts 1 1/2 in. And 2 1/2 in. Plumbed with inlet at any port. Designed to work with most industry standard actuators.