The Chassis is the backbone on which the AR-1 is built. Machined from solid HDPE, the chassis stabilizes the intake and outlet arms of the pump using the drum of the pump to alleviate the need for fragile independent mounts that become failure points. Utilizing multiple dampening methods including controlled deflection, the pump is allowed to vibrate without being unnecessarily constrained, making the pump unbelievably quiet - not interrupting your solitude with noisy electromechanical systems. We added two large, pronounced, padded crash guards to protect the AR-1 while also serving as convenient and easy handles.