Adapt-A-Bottle Calf Fluid Feeder comes complete with a standard 2-quart nursing bottle, cap, large-diameter tubing, and rigid probe with a tapered bulb for safety and ease of insertion. A flutter valve in the head helps to equalize bottle pressure, which improves flow and calf acceptance. A ratchet clamp is provided to shut off flow as needed, and a support tube at the bottle exit port helps prevent kinking of the tubing.