Thanks Janemm for posting the link. I have used these crates for about three years now in my pond. They work great. I came accross them when Rehrig asked my company to develop an automation system to open the crate up automatically and place it in a washer. The crates are used in the produce industry out in the fields. I purchased two pallets of them several years back to incorporate into my designs as well as make them available to the public. I have a few left. E-mail me if you need some. Koi Boy.