Titan has a range of Diaphragm Pumps in five different sizes, 1, 1 ½, 2, 3 and 4 inches. The pumps are available in different elastomers i.e. Neoprene, Buna, Viton, PTFE, and TPES. Titan Air operated diaphragm pumps are interchangeable with Wilden®. Titan has recently announced Diaphragm poly pumps in four sizes.