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Pro Supply Outlet Sodium and Potassium Hydroxide Products
Check whether yours is affected, then follow the instructions below.
What’s wrong
The products contain sodium hydroxide or potassium hydroxide which must be in child resistant packaging, as required by the Poison Prevention Packaging Act (PPPA). The packaging of the products is not child resistant, posing a risk of chemical burns and irritation to the skin and eyes. In addition, the label on the product violates the Federal Hazardous Substance Act (FHSA) by omitting the word "poison" for poisonous chemicals.
The Recall Registry rates this serious — Fire or burn risk.
What it looks like
Photos help. Identifiers decide. Appearance can vary by color, finish or packaging. Confirm the model number, date code or other identifier in the official notice.

Recall image provided by CPSC
What to do
Consumers should immediately store the recalled products in a safe location out of reach of children and contact Pro Supply Outlet for a free replacement child-resistant cap and label to put on the product. Pro Supply Outlet is contacting all purchasers directly.
Who to contact: Pro Supply Outlet toll-free at 855-248-9059 from 9 a.m. to 4 p.m. PT Monday through Friday, email at PSO5000@ctiinc.biz, or online at www.prosupplyrecall.com and click on Recall Notice for more information.
The product
This recall involves Pro Supply Outlet sodium and potassium hydroxide products sold in two-pound rigid white plastic jars with continuous thread caps. The front of the label bears the PSO logo, the product name, SKU 7023 and UPC 078345004533 for the sodium hydroxide and SKU 7132 and UPC 078345004625 for the potassium hydroxide.
Details
- Units affected
- About 2,600
- Recall date
- May 20, 2021
- Brand
- Chemical Technologies International Inc., dba Pro Supply Outlet, of Rancho Cordova, Calif.
- Injuries reported
- None reported
- What has been reported
- No incidents or injuries have been reported.
Amazon.com, eBay.com, Etsy.com and prosupplyoutlet.com from January 2018 through March 2021 for about $15.
The official notice
This recall was issued by the U.S. Consumer Product Safety Commission. The Recall Registry summarises it — always confirm the details at the source.
Their exact wording: “Pro Supply Outlet Recalls Sodium and Potassium Hydroxide Products Due to Failure to Meet Child-Resistant Packaging Requirement and Violation of FHSA Labeling Requirement (Recall Alert)”
Worried about the other things in your house? You can write down what you have and be told if one is recalled — or, if you sell second-hand, check your whole stock at once.
Filed under: Cleaning & chemicals