Phosphoric Acid 85% - High Purity Industrial Grade - Premium Multi-Purpose Use for Cleaning, Etching, Rust Removal, and More. (100mL)

Great for cleaning hazy headlights

It works like it’s supposed to

Seems to work as intended. Thanks

It is what they say

Came in 4 quarts instead of a gallon but that just made it easier for me to not have a full gallon open. But I only need about a pint at a time for dilution to 25%

I have used 85% Phosphoric Acid for brewing water pH adjustment for many years. The water I use for brewing is around a pH of 8. I use a little under a tablespoon to adjust the pH from 8 to 5.2-5.3. The typical 10% phosphoric acid solution you can buy in most homebrew shops would last for two brewing sessions. This is a great product for brewing water pH adjustments. If you use it, be extremely careful because this strength will "burn" you, your floors, counters, carpet and anything that is not acid resistant. Wear safety glasses to protect your eyes. If used properly and safely this is a great product for brewing water adjustment.

Took care of nasty bathroom rings

Wrong item They asking postal service which is higher than item price