Alco Controls Ball Valves use a rotating ball with a drilled port to offer quick on/off isolation for water, gas, or refrigerant lines. Available in full-port and standard-port models, they minimize pressure drop when fully open and provide bubble-tight shut-off when closed. Robust construction and durable seats make these valves a go-to choice for service technicians seeking long-lasting performance and easy operation in HVAC and plumbing systems.