Donaldson Delta P Differential Pressure Indicator, part numbers M9805020745 and M9805020700 (70536-01), is a device that measures differential pressure and indicates the pressure difference within a filtration or related system. The listed part numbers identify the exact Donaldson catalog references for this delta-P indicator. Use of this instrument supports monitoring of filter performance by signaling when the pressure drop has reached a level that may require maintenance or replacement.
