The Orbit 58874N is an extra valve for the Orbit 58872 complete watering kit, making it a 4-station sprinkler system. This well-built sprinkler valve is of solid construction and is completely waterproof for high efficiency use. With a leak-free design, the Orbit 58874N extra valve helps conserve water.Features and BenefitsAttaches to the 58872 automatic yard watering kitHas waterproof construction for water conservation and uninterrupted operationFeatures a leak-free design