PLEASE SELECT YOUR INCUBATOR WITH THE TURNING RING OF YOUR CHOICE :   TX7 W/AUTOMATIC EGG TURNING W/9 TURNING RING, 230V Stock #: 910-068A/9 $ 424.00 (+ $ S&H) TX7 W/AUTOMATIC EGG TURNING W/18 TURNING RING, 230V Stock #: 910-068A/18 $ 424.00 (+ $ S&H) TX7 W/AUTOMATIC EGG TURNING W/27 TURNING RING, 230V Stock #: 910-068A/27 $ 424.00 (+ $ S&H) TX7 W/AUTOMATIC EGG TURNING W/48 TURNING RING, 230V Stock #: 910-068A/48 $ 424.00 (+ $ S&H) TX7 W/AUTOMATIC EGG TURNING W/72 TURNING RING, 230V Stock #: 910-068A/72 $ 424.00 (+ $ S&H)