AGF Manufacturing revolutionized the fire sprinkler industry with the Model 1000 TESTanDRAIN® single valve inspector's test, which eliminated the time-and-space-consuming traditional loop assembly. Since then, TESTanDRAIN® valves have been installed on many fire protection systems throughout the world. TESTanDRAIN® valves are now made in more styles, in more sizes, and with more orifice options than any other valve on the market.