F9 BARC Gallon RSF9
- Used to remove Fertilizer and Battery Acid Stains
- The safest Rust Removal product you can use
- Also can be used for removing rust stains caused by irrigation systems, HVAC systems, and other causes
- We have safely used on windows and roofs, but do not let it dry on these surfaces.
Shelf life of F9 products:
If brand new product, unopened:
- BARC = 5 years
- Double Eagle = 5 Years
- Efflo = 2 years
- Groundskeeper = 2 years
If opened, cut those numbers by half approximately.