Jabsco "hy line" rotary lobe type pharmaceutical grade pump, model lh 320-1890e, serial # 34706. Features 316 l stainless steel wetted parts, twin dual wing lobes, rated for . 92 gallons/100 rev for maximum gpm of 13. 7/52 liters per minute to maximum rpm of 1500 rpm, maximum pressure 217 psi, maximum temperature -22 to 284 f, viscosity 1 to 1 millon cps, 1/2" inlet and outlet with tri clamp connections, formerly used in pharmaceutical service.