1 GAL (Yellow) Super Concentrate (-100º) Heat Transfer Boiler Antifreeze
1 GAL (Yellow) Full Strength (-100º) Heat Transfer Boiler Antifreeze -NON-TOXIC
Perfect for travel/shipping/ or replacement after flushing a system/zones as the water now in your zones will mix with your full strength transfer fluid.
Mix 50/50 with your Distilled/Good/mineral free bottled water.