Hercules Cryo-Tek-100 Anti-Freeze Heating & Cooling System, 5 Gal, Red Packaging oil or gas

oil or gas

(3) Robertson no 2 and (1) Robertson no 3

triangle base with a handle on each end for easy stone rotation and stone labels for easy recognition

UL listed for use over bathtubs and showers when connected to a GFCI-protected branch circuit

Hercules Cryo-Tek-100 Anti-Freeze Heating & Cooling System, 5 Gal, Red Packaging oil or gasA blend of virgin (not recycled) propylene glycol and high purity Triple Protection additives, formulated for use in closed loop hydronic heating and cooling systems. Cryo tek can also be used in radiant tube heating systems, most solar heating systems and geothermal loops. Hercules exclusive Triple Protection formula stabilizes pH to prevent acid corrosion, chelates hard water minerals and inhibits the formation of scale and sediment. These