ALLIED-11-20-0022 Nitrogen Regulator Assembly, 90° DISS Female Inlet, DISS Male Outlet with Check (1 EA)Allied Medical LLC 11 20 0022 is a high performance nitrogen regulator check unit designed for precision control of pneumatic surgical instruments. It features a 90 degree DISS female inlet and a DISS male outlet equipped with an integrated check valve to prevent gas loss. This portable assembly provides an adjustable operating range of 5 to 180 psig with a large, easy to read 300 psig gauge for real time pressure monitoring in surgical environments.