Unused Sandpiper ST1-A AODD Pump Type DNG-4-SS, manufactured by Warren Rupp, Model ST1-A, Type DNG-4-SS, Serial No. 591541. Spill containment pump design, 1 inch NPT pump size, side manifold porting position, material of construction 316 stainless steel , diaphragm check valve material neoprene driver diaphragms, PTFE pumping diaphragms and PFTE check balls. Capacity 0-159 litres per minute, max operating pressure 8.6bar. Weight 30kg.