Flow Security Systems | Guard&rsquo;n&rsquo;Lock | Faucet Protector | Magnetic Key | Keyed the Same | Prevents Water Theft & Secures Outdoor Bibbs | Promotes Water Conservation | FSS 550 | 1 Pack PREVENT UNAUTHORIZED USE: Tired of wondering whos using your water after hours? The FSS 550 is a revolutionary new way to secure your hose bibbs, silcocks and outdoor faucets or taps. This lock has a unique patented free-spinning design in order to secure faucets and hose bibbs from miscellaneous vandalism, unauthorized use, tampering and water theft. EASY ASSEMBLY: Securing hose bibs from vandalism and theft has never been easier. The GuardnLock is extremely easy to use. Simply remove old bib handle with a screwdriver or wrench and replace with provided adapter, all tools provided(except screwdriver). NOT FOR USE ON FROST FREE HOSE BIBS. MULTI-PURPOSE USE: The GuardnLock provides complete security at your house, vacation home, or apartment. The FFS 550 also works perfect for commercial and industrial buildings, ideal for schools, college campuses and shopping centers and can easily secure hospitals and apartments. KEYED THE SAME: The GuardnLock is keyed alike so that multiple hose bibbs can be secured with the convenience of having only one key. Perfect for commercial and industrial buildings, farm lands, parks and recreational areas where there are numerous GuardnLocks being used over a large area. If you prefer a different key for each lock, that option is also available. WATER CONSERVATION: The GuardnLock promotes water conservation by preventing water theft and unauthorized use. This lock will deter unauthorized use of outdoor water lines, great addition for all homeowners. Made from hardened zinc alloy this lock is built to last.