Underwriters' Laboratories Inc. Listed
Range of Sizes:
Standard: 1802, 1803, 1804, 1805
Back-Check: 1802-BC , 1803-BC, 1804-BC, 1805-BC
Two Adjustment Valves: Closing and Latching
speeds controlled by separate regulating valves, adjustable after
Series BC Models have adjustable Back-Check function controlled by a separate regulating valve, adjustable after installation.
Universal application. Non-handed for standard, top jamb or parallel arm installation (with optional PA Bracket).
Narrow design permits installation on most modern glass and aluminum doors
AL - Aluminum
DU - Storefront Bronze (Dark)