690291034916

I couldn't find specific information on the barcode 690291034916 reported as GRINNELL CORP. 1/4 BLACK SQUARE HEAD PLUG. The barcode might be missing, incorrect, or not widely recognized.

However, I can suggest some possible sources where you may be able to find more information:

• The manufacturer's website: You can try contacting Grinnell Corp directly to inquire about the product and its safety features.
• Regulatory agencies' websites: In the US, for example, the Consumer Product Safety Commission (CPSC) and the Environmental Protection Agency (EPA) maintain databases of hazardous products. You may want to search their websites for more information on this product.
• Online marketplaces: If you're looking to purchase this product, you can try searching online marketplaces like Amazon or eBay to see if other sellers have listed it.

As for prices, I couldn't find any available information due to the lack of matching results.

There are no specific warnings or concerns related to this product that I could find. However, please note that it's a plug and not a consumable product, so health-related disclaimers may not be applicable.

If you have any further questions or need assistance with finding more information, feel free to ask.