Review on 🐠 Pawfly Large Air Stone Cylinder: Enhancing Aeration in Ponds and Fish Tanks by Kimberly Becker

I purchased on July 29, 2018 but my system was not working until October 28th. When I first plugged them in (both did the same thing) I'd say 90% of the air escaped around the stem just forming big bubbles. Poor quality and too late to return. Update: After epoxidizing the barrel and finding it was still leaking, I found that the problem was related to the strain relief tubing I was using. The stones were ok. 4 stars because of bad packaging. Also worth noting that I received a note from the seller with instructions on how to get a free replacement even though the warranty has expired, so I think I'll change it to 5 stars for good customer relations. Thanks very much!