The #17811 3-inch Drawtube Adapter allows multiple 3-inch Optec devices such as the TCF-S3, IFW-3, and Pyxis 3" rotator to be strung together directly. This adapter presents an OPTEC-3000 dovetail on the front to fit smoothly into the back-end receivers of 3-inch Optec products, and an OPTEC-3600 dovetail on the back to fit the front-end receivers of these products.
