STAR BRITE -100° Boiler System Antifreeze, 1 Gallon
$45.99 on Amazon.com (as of October 10, 2026, 11:45 PM EST) View details ↗
Ensure optimal performance and reliable cold-weather defense for your heating equipment with STAR BRITE Premium -100° Boiler System Antifreeze. Formulated with propylene glycol—deemed “Generally Recognized As Safe” (GRAS) by the FDA for specific direct and indirect food contact applications—this heating and cooling fluid provides a safer, environmentally friendlier solution for residential or commercial setups. Whether you are maintaining a closed-loop layout, a traditional boiler, or a solar system, this premium fluid delivers exceptional thermal efficiency and peace of mind against accidental leaks or spills.
Engineered for superior heat transfer, this American-made fluid is exceptionally well-suited for specialized heating setups including Aqua-Hot and Hydro-Hot systems. When used at full strength, it offers heavy-duty burst protection down to -100ºF (-73ºC). Additionally, the formula incorporates a specialized blend of premium corrosion inhibitors designed to actively safeguard internal metal components, helping to extend the operational lifespan of your valuable mechanical infrastructure through rigorous seasonal demands.
| Burst Protection | -100ºF (-73ºC) at full strength |
|---|---|
| Volume | 1 Gallon |
| Country of Origin | Made in USA |






