... :1 etc Specificationsliquid transfer pump 1. for chemical liquid, oil, heavy visocosity liquid, PU liquid,paint 2. 1:1, 3:1, 5:1 ... etcPU liquid transfer pump, Polyurethanes liquid transfer pumpair operated transfer pump for chemical liquid, oil, heavy visocosity liquid, PU liquid,paintin paint, oil ... :1, 3: 1, 1: 1* capacity: 15kg/min* steel, aluminum* liquid Max Temp.: 88°C