Irritrol's R102-5476 16 - 20 Pin Connector comes from the Rain Dial R Series. This connector is designed specifically for use with Rain Dial Controllers. 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.