Can I replace this permanent filter with a disposable one

Will this improve unit heater noise

High Accuracy: Pilot-operated design provides much closer control than direct-acting valves

For high-precision applications

0 FLA at 120 VAC

Littelfuse 201A-AU-OT Monitor R-407C Can I replace this permanentThe Littelfuse 201A AU OT is a heavy duty, 8 pin 3 phase plug in voltage monitor engineered to protect motors from volatile line conditions. This auto ranging motor protection relay operates seamlessly across 190 480 VAC, eliminating the need for manual range selection between 200V and 400V systems. As a micro controller based unit, it provides precise sensing to mitigate phase loss, voltage unbalance, and phase reversal before damage occurs to the