840AMU-Manual, 25 gram CO2, 3/8", Inflatable PFD Rearming Kit Manual, 25 Gram, 3/8" Thread Used On: Stearns, Sospenders (Model 25MSPT-1, 0364, 0367, 1131, 1133, 4444, I444) Related Kit Model Numbers (24MRP-1, 0905)