Taprite 7740-19-SP replaces the diaphragm, valve capsule and tank-connection seals in compatible CO2 and nitrogen regulators. The kit uses a 2-inch diaphragm and fits Taprite 740, 1600, 5260 and 5740 series regulators.
Not for 3700-series regulators, which use a separate 1.6-inch diaphragm kit. Check the model number on your regulator before ordering.