Irritrol's 300-1 1" Electric Valve Adapter comes from the 300 Series. This adapter is designed for use with converting Champion Brass Anti-Siphon Valves and Irritrol 1" Valves to electric operations. Irritrol has made their name as a brand by selling and marketing exclusively to the professional installer, as a result their products are geared to be dependable and durable. Irrirtrol is now making their products available to you through our website. If you are looking for a product line that will last year in and year out, Irritrol is the brand for you.