Sandblaster/Beadblaster/Glassblasting/Blasting 3 Way 2 Position Compressed Air Foot Pedal Valve 1/4" NPT Momentary/Spring Return Compressed Air SB-FV320 Type: 3 Way 2 Position Foot Pedal Pneumatic Valve Sand/Glass/Bead Blasting Model: SB-FV320 Coil: N/A Ports : 1/4" NPT Exhaust: 1/4" NPT