National Supply provides a vast array of controls, from temperature, pressure, lube oil, and defrost controls for Residential/Commercial/Industrial Applications. We provide controls from the majority of the Major manufactures, including OEM sourcing. From traditional thermostats thru pneumatic heating controls to pressure, lube oil failure, defrost controls, Time Clocks for Refrigeration including Ammonia systems Heating & Cooling.
- Easy-access battery replacement
- Built-in instructions
- Largest display in its class
- Up to 2H/2C – conventional and heat pump
- 5-Year warranty