A: We provide free inventory samples under 1KG, if you want Specific samples, make sure you contact us and we could converse. Our options not merely Increase the clarity and usefulness of treated h2o but will also reduce ecological impacts, Trustworthy by industries around the globe, Henan Aierfuke Substances Co., https://www.pac-pfs.com/product/drinking-grade-polyaluminium-chloride.html