MOCAL thermostats are available two styles. The OTI version utilizes push-on hose barbs and is available for either 3/8" or 112" i.d. hose. 0T2 type thermostat is designed with thread-on male fittings available in all popular JIC/-AN sizes (-8AN, -lOAN, -12N, -I6AN) and BSP sizes (1/2", 5/8"). For additional plumbing versatility a 1/2" female thread OT2 version is available which will allow any male/male union to be installed.