The Qwikmount mounting system from Comsite Hardware uses water as ballast. The system is designed to eliminate the cost and hassle of transporting bricks, sand or concrete to the roof to ballast a mount. The system requires only a hose and a faucet. The shipping weight is less than 160 pounds compared with 480 to 1000 pounds for other products. The segmented ballast tank of cross-linked HDPE material comes in three sections for easier shipping and handling, and it quickly bolts together to provide a stable support for antennas. One person can carry a Qwikmount in a freight elevator and have it completely assembled in as little as one hour. Qwikmount may also be used in groups to form array assemblies. www.comsitehardware.com