Procon Products Brass 1/2'' 330 GPH Clamp Style Rotary Vane PumpProcon Products Brass 1 2'' 330 GPH Clamp Style Rotary Vane Pump Brand: Procon Products Material: Brass Port Size: 1 2'' Min Temp: 4 F Max Temp: 160 F Max PSI: 250 PSI Flowrate: 330 GPH Rotation: Clockwise Mounting Style: Clamp On Drive Configuration: Slotted with Bronze Coupling Min Speed: 1000 RPM Max Speed: 2400 RPM Max Static PSI: 100 PSI Valve Configuration: No Relief Valve Internal Material: Carbon Series: 4