OXALIC ACID 99.6% 5 Lb. Deck, Crystals, Metal Cleaning- Rust Removal, Wood Stain Remover and More! 3 x 5 lb Bag Case

This works like magic for removing rust stains , restoeing wood to its natural colors or whitening concrete. You can buy it in the store for 3x the price and half the product or you can get it here for a much better deal. I love it and highly recommend it.

Well packaged and is exactly what I wanted

Did a great job on cleaning a cedar deck. Mix easily with water and spray, let sit, then power wash off.

I am using this for mite control on bee's and they survived the winter. This is a first in a while so I am excited and attribute it all to the use of this OA.

Did a great job cleaning my wood fence, used 1 cup per gallon and applied it using a handheld sprayer on an overcast and slightly rainy day. Still have plenty left for other projects!

Great product for removing rust stains from pool. It’s the first step in the process. This product works were muriatic acid doesn’t. Much cheaper buying in bulk then purchasing products specifically for pool rust removal. Does take knowledge of pool chemistry to use correctly.

For my vaporizer. Great price for 15# that are in # bags, make it easier up handleUSPS delivered great as alwaysNOT good is the zip lock part as it doesn't want to close. Had to fight with it to mostly get it working. Ended up folding bag over and putting in a ziploc bag