Four module applicator head with heater controlled by a fixed thermostat. H200 Style standard modules (KNH2CA) are used on this applicator head. This applicator head has common air allowing one solenoid valve (sold separately) to fire both modules simultaneously. Applicator head will fit to Nordson® Model IV/V standard automatic hoses. Uses KNRN238 retaining nut for nozzles requiring retaining nut and KNH2CA modules.