diatomatious earth 50lb bags available cheap

not sure which forum to post this in as it has so many uses, but Repurposed Materials has 50lb bags for $30 plus freight from colorado;
https://www.repurposedmaterialsinc.com/chemical-additives/diatomaceous-earth-50-lbs-bag/?utm_source=repurposedMATERIALS+newsletter&utm_campaign=ca55597f5e-EMAIL_CAMPAIGN_2023_09_18_07_01_COPY_01&utm_medium=email&utm_term=0_-2e62bd1c54-26990583&mc_cid=ca55597f5e&mc_eid=f0258e9f36

Thanks fir the web site. That's a new one to me.  Tom