Cryo-Tek-100 Anti-Freeze / Glycol (5 Gal) 1/8 HP The ZVR series is a

The ZVR series is a multi-zone valve relay and boiler operating control for multiple zone hydronic heating systems

a reliable diagnostic tool designed for HVAC professionals

Radiant heating

from heat pumps to furnace and air conditioners

The sensor is equipped with 1' lead of 22 AWG wire

Cryo-Tek-100 Anti-Freeze / Glycol (5 Gal) 1/8 HP The ZVR series is aHercules Cryo Tek 30 gal 100 Antifreeze is a ready to use 55% Virgin Propylene Glycol formula. It's designed for hydronic heating and cooling closed loop systems, most solar heating systems, snow melts, radiant heat and general plumbing systems. Behold the power of Hercules, products built to last and trusted by plumbers to withstand even the toughest conditions. Applications Closed Loop Systems, Plumbing, Hydronic Systems, Solar Heating Systems,