These are normally $30 each when new. These have never been used, as I was intending them to be on my 4000 gal. I still have them, and need to sell them off. They are 3" internal dia, and 4" external. They can bolt right to a water tank or whatever you have in mind. I'm sure someone on here can use them for something. I'm offering them up for $30 for the pair or best offer. I'm in Helena, MT 59601. This item is shipable to anywhere worldwide. I thought these would be cool if someone had a large tank build and needed them for something or if you wanted to make a really cool trasport tank that you could sit right into your fish' new home and pull up the gate and let them swim out on their own=less stress!
