The 3400610 is technically from the DBI/SALA Sealed SRL series, however due to the size they have been unable to gasket the gear housing. It is still constructed with a stainless steel and cast aluminum housing for corrosion resistance. The internal mechanical working parts are still protected in their own section of the housing to keep dirt and other crud away, just no rubber bag encloses them. The standard reserve lifeline retention system keeps several wraps of cable on the drum for added safety. A swiveling self-locking snap hook with impact indicator helps keep the line from twisting.
The 175ft x 3/16 in. galvanized steel wire rope provides durability and reliable fall protection. The Sealed version SRLs also use a self adjusting disc brake for reliability and it exceeds all applicable industry standards including OSHA, ANSI and the new ANSI Z359 2007. Weight: 100 lbs.
Capital Safety Sealed SRL Manual