The Feser Base Corrosion Blocker is a great way to get the best of both worlds. Of course distilled water has the best thermal transfer rates but it leaves you unprotected. Use this additive to fix that! One part Feser Base to 50 parts distilled H20 and your in business!

Warnings and Special Notes:

 Only designed for Feser Aqua and distilled water.

Corrosion Inhibitor for Cooling Liquids

• Stable HDPE upright bottle
• Dropper Cap - no funnel needed
• Mixing Ratio 1 : 50 - 50ml will treat 2-3 liters of coolant
• Unopened shelf life of 3 years (maximum)
• Environment Friendly