The TC4300 has all the same design features and specifications as our TC4361 and is our heaviest duty closer for institutional and all other high traffic demanding applications. It has a wide choice of options and installation accessories to accommodate the requirements specified in any industrial or institutional environment. This model comes tri-packed standard and can be ordered with different arm styles for maximum versatility. Fully compliant with opening force requirements for ADA and ANSI/BHMA standards. Meets ADA Requirements. Grade 1 Certified, ANSI/BHMA A156.4 Options: Specify when ordering Hold open cush – HOA Cush arm – CNS Heavy duty – HD Finish – AL, DU Specifications: Grade 1 certified, ANSI/BHMA A156.4 UL Listed #R7483 (mfg. 5300 series) complies with UL10C for positive pressure Aluminum alloy shell Non-handed – full cover Multi-size springs 1-6 adjustable power ADA compliant Three independent regulating valves – control sweep and latch closing speeds, also backcheck cushion Tri packed- regular, top jamb, parallel arm Supplied with both wood and machine screws Finish: AL- Aluminum, DU- Duronotic