TRU Vision 28-inch J-Hook Heavy Duty Wiper Blade Assembly. Improve your vision with TRU Vision quality windshield wiper blades. TRU Vision offers the largest selection of recreational vehicle wiper blades on the market today that fit virtually all of your RV wiper needs. All TRU Vision windshield wiper blades feature a rugged metal construction and a longer life rubber wiping element for consistent, reliable performance. All TRU Vision heavy duty wiper blades feature durable metal construction and a heavy duty natural rubber wiping element for quality performance under demanding conditions. The TRU Vision adapters permit easy installation onto most wiper arms. Remember: More than 95 percent of all driving decisions are based on vision.