| I'm attaching a link to the supplier I use. I don't see the size you're wanting online but perhaps you could call them. They carry products from multiple manufacturers. If you knew who made the trays you had that would help. 4" is a pretty deep container. I don't know if I've seen a tray that size, but you never know. Good Luck. |
Here is a link that might be useful: Propagation Trays/McConkey