Offering an aseptic fluid path that contains fluids within the tube at all times, the Watson-Marlow 520 dye addition pump prevents fluids from coming into contact with the pump mechanism. Dye color can be changed in 1 step by switching the tube element. The pump features elements that ensure correct loading with no snaking, twisting or pinching.

Watson-Marlow; 800-282-8823; www.wmpg.com