Bulkheads are push to connect fittings that are typically used to run air lines into a false floor or from the interior of your vehicle to the exterior. The standard SMC bulkheads we offer are great for connecting air line in a straight line. If you need to make a quick 90˚ turn on the other side of the bulkhead, you can thread in a swivel elbow for added options. If you have any questions about the bulkheads you see here, contact a Bag Riders air ride specialist for more information.