All series 4400 are ansi bhma a156 4 grade 1 certified.
Yale 4400 door closer.
With new pinion and piston materials improved valve design and staked valves the closers are the most efficient dependable closers in the industry.
Yale s 4400 series institutional door closers offer customers the ideal combination of superior performance quality and strength.
Yale s 4400 series institutional door closers offer customers the ideal combination of superior performance quality and strength.
All yale series 4400 closers with non hold open arms are listed by underwriters laboratories for labeled fire doors.
With upgraded pinion and piston materials improved valve design and staked valves the closers are the most efficient dependable closers in the industry.
Yale s 4400 series institutional door closers offer customers the ideal combination of superior performance quality and strength.
With new pinion and piston materials improved valve design and staked valves the closers are the most efficient dependable closers in the industry.