Beam, largest-selling built-in System in NZ. Truly has the power to Deep Clean your carpets. Convenient and safe to use, great on stairs. Vacuum for as long as necessary, no batteries to charge, essential for large homes. Beam Systems have been approved by the Asthma Foundation, beneficial for Asthma, Hayfever and allergy suffer's. Install ducting at framing stage of build, usually about 1/3 cost of full System. Commission System later. Is a valuable chattel which will add value to and be constantly used, for the life of the house. Full back-up from a long-established NZ Company.