Ready Grip RF Direct Connect Sender Air Regulator - Hide A Hose Boost It is the mechanism that

It is the mechanism that raises and lowers the brush head to match carpet pile height

If your upright has started steering like a cart with a bad wheel

while the axle and spring give it a positive return so the cover snaps closed and stays sealed

This listing covers the complete machine as described

Ready Grip RF Direct Connect Sender Air Regulator - Hide A Hose Boost It is the mechanism thatThis Hide A Hose Direct Connect RF Remote Handle with air regulator sends a wireless signal to your central vacuum system to turn it on and off. Features an integrated air flow regulator for suction control. A single receiver can support up to 10 hose handles for flexible whole home operation. This handle is compatible with older hoses, but an additional adapter may be required.