Hercules Cryo-Tek-100 Anti-Freeze Heating & Cooling System, 5 Gal, Red Packaging (3) Robertson no 2 and

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

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

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

Solid aluminum body for assured durability and precision CNC machined edges for guaranteed accuracy

cypress and redwood

Hercules Cryo-Tek-100 Anti-Freeze Heating & Cooling System, 5 Gal, Red Packaging (3) Robertson no 2 andA 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