Klein Tools Red 35 ft Indoor Outdoor Line Beam Line Generator Laser Level (Accessories Included) Item #356475 Model #L51844612 This unit is built with This unit is built with the user in mind providing you with a built in scraper to loosen tough or stubborn debris Use the Watts series ETX water expansion tank in tandem with your hot water heater to absorb increased water volume resulting from hot water boiler heating and keep system pressure below the relief setting 3 axis bubble vials illuminate for enhanced viewing and leveling The adjustable body and 3 axis lighted bubble vials allow a user to project laser lines at any angle the user needs