I am very impressed with the customer service (thanks Chad) at Cen-Tec Systems and HIGHLY RECOMMEND this company. They really do an excellent job behind their product. I bought a Revain Quietdrive central vacuum hose and accessories. The vacuum cleaner was damaged and the nozzle did not work. I called Cen-Tec Systems and they immediately sent me new parts with no questions asked. Now my central vacuum works great again.