Single module standard applicator head with heater controlled by a RTD sensor. H200 Style air open/air closed (AO/AC) modules (KNH44C) are used on this applicator head and the solenoid is included on the head. Applicator head will fit to Nordson® 2300/3000/ProBlue® and DuraBlue™ automatic hoses. Uses KNRN238 retaining nut for nozzles requiring retaining nut and KNH44C modules.