Hercules Cryo-Tek-100 Anti-Freeze Heating & Cooling System, 5 Gal, Red Packaging Special high-technology additives are blended

Special high-technology additives are blended in to protect the wood from the sun's damaging UV rays

500' spool

(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

Size: 1-1/4"

Hercules Cryo-Tek-100 Anti-Freeze Heating & Cooling System, 5 Gal, Red Packaging Special high-technology additives are blendedA 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