Neat, compact and durable U.L. Listed and meets Canadian Nat'l Standard Included in 1/2 hour fire door test to BS476 Part 22 - 1987 Suitable for use with doors up to 150 lbs. (68kg) Available in polished brass, satin chrome, chrome, white, black and brown finish Suitable for right or left-handed doors Maintenance-free Die-cast zinc alloy body incorporates two torsion springs Adjustable pressure exerts a variable closing force on doors Suitable for indoor and outdoor use