For sale are new Blissfield 50733 condensor coils. Each bid gets you one coil. Enter more than 1 in the quantity field if you want more. Each measures about 9.5 by 11 inches.
These coils take standard compression fittings from Ace Hardware, I think 1/4" on one side and 3/16" on another side.
They are perfect for small projects like TIG water coolers, compressor aftercoolers (or even intercoolers), making moonshine, etc. Possibilities are endless.
See how I used it in my homemade TIG water cooler: