Irritrol's SPK-100-1 100 Series Repair Kit (1") comes from the 100 Series. This kit can be used to repair any 1" 100 Series Valve. 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.