... control valve 2. World class quality imported diaphragm 3. ADC aluminum alloy Valve body. Dust collector control ... AirOrifice: (25mm, 40mm, 50mm, 65mm, 76mm are available)Joint size: (1", 1-1/2", 2", 2-1/2 ... ", 2", 2-1/2", 3") Product Information1. Feature: ASCO series, copy, same size ... for you to choose2: Large stock for fast shipping.3: High quality with competitive price4: Sample order & ...