These well-known adapters convert manual anti-siphon valves to electric operation. The 2623 DPR Series Valves convert champion brass anti-siphon valves to electric operation. Some other key features and benefits are these electric valves have a heavy-duty corrosion and UV-resistant PVC and stainless steel construction. They have an internal and external bleed (flush mode), along with rugged, double beaded SANTOPRENE® diaphragm.