Metpure Reverse Osmosis Filtration System Universal Faucet Wrench Faucet Installer RO-FW148 Universal RO filtration system faucet wrench for quick, easy, tight installation No more back breaking positions or reaching into that limited under-the-counter space with an adjustable wrench 8" long, Great for homeowners or installers Durable ABS plastic for repeated use A must-have tool for all filtration faucet system installation