PLEASE SELECT YOUR INCUBATOR WITH THE TURNING RING OF YOUR CHOICE :   TX7 W/AUTOMATIC EGG TURNING W/9 TURNING RINGS, 120V Stock #: 910-067A/9 $ 376.00 (+ $ S&H) TX7 W/AUTOMATIC EGG TURNING W/18 TURNING RINGS, 120V Stock #: 910-067A/18 $ 376.00 (+ $ S&H) TX7 W/AUTOMATIC EGG TURNING W/27 TURNING RINGS, 120V Stock #: 910-067A/27 $ 376.00 (+ $ S&H) TX7 W/AUTOMATIC EGG TURNING W/48 TURNING RINGS, 120V Stock #: 910-067A/48 $ 376.00 (+ $ S&H) TX7 W/AUTOMATIC EGG TURNING W/72 TURNING RINGS, 120V Stock #: 910-067A/72 $ 376.00 (+ $ S&H)