Anodized Aluminum 'spine' that serves as the central chassis for the RD1 oxygen rebreather. Can be used for a variety of custom development projects to couple cylinders, scrubbers, battery canisters, and similar.
The slots allow standard 2" cam bands. Central holes allow thu-bolts (up to 3/8") for standard backplates, backpacks, BC's, and other harnesses.
Your choice of 150mm, 200mm, 300mm, 350mm, or 400mm length. The stock RD1 rebreather uses the 300mm spine.