Always verify internal trim sizing before installation

This diaphragm is specifically designed for Honeywell PP901A and PP901B series units often integrated into pneumatic fume evacuation and pressure regulation systems

It maintains the same electrical and mechanical specifications as the legacy part

OEM Precision: Guaranteed compatibility with Berko and QMark units

Features a high-output 10kV secondary voltage for reliable fuel atomization ignition

Hydrotherm 02-2406 Aquastat 320788-702 Always verify internal trim sizingThe Hydrotherm 02 2406 Aquastat is a mission critical immersion type temperature controller engineered for high performance hydronic systems. Featuring a Single Pole Single Throw (SPST) switching configuration, this rugged aquastat relay provides precise thermal regulation across a broad 40F to 240F operating range. Designed for direct insertion into the medium, the Hydrotherm 02 2406 functions as a reliable high limit or low limit control, ensuring