Four module standard applicator head with heater controlled by a RTD sensor. H200 Style standard modules (KNH2CA) are used on this applicator head. This applicator head has independent air allowing several solenoid valves (sold separately) to fire the modules at different times. Applicator head will fit to Nordson® 2300/3000/ProBlue® and DuraBlue™ automatic hoses. Uses KNRN238 retaining nut for nozzles requiring retaining nut and KNH2CA modules.