SPECIAL APPLICATION Safety Sentry Model SS350HD is A "Complete Towing Accessory" for One of the most popular RV and Comercial Hitch Couplers. Designed for Atwood 2" MODEL# 88555 8000 LBS OR 2 5/16" MODEL# 64-4102 10,000 LBS Couplers Comercial and RV Applications. SS 350HD Safety and Security System includes Safety Sentry Housing, Stainless Steel Disc Lock "Cut Resistant & Freon Resistant" Also includes 2 Step Washers for Shank Sizes 1" and 1 1/4" for either Trailer Ball size 2" or 2 5/16" and 2 Nylon Lock Nuts 1" and 1 1/4" for either size ball on this application to insure easier installation. Make sure your trailer ball is securely tightened to manufactures specs of 100 FT Pounds. MAKE SURE COUPLER SIZE AND BALL SIZES ARE CORRECT BEFORE INSTALLATION
