Does this switch require a separate controller

common in liquid receiver setups

capable of managing pumps

Built with laminated magnet construction and an untaped coil

preventing hunting and improving system stability in variable load scenarios

Hydrotherm 20-00003-001 Air Filter 319825-402 Does this switch require aThe Hydrotherm 20 00003 001 Air Filter is a critical OEM replacement HVAC filter engineered specifically for high performance Hydrotherm heating and cooling assemblies. As a veteran technician knows, maintaining proper static pressure and airflow velocity depends entirely on using the correct media density found in genuine Hydrotherm parts. This filter is designed to slide into the factory rack with a precise friction fit, preventing air bypass that