Reelcraft Adjustable Hose Bumper Stop for 3/8" ID Hose - For Series 4000, 5000, RT400, RT600, 6000, and D8000 Reels. Made of solid-molded rubber, assuring a long life and nonslip grip, hose bumpers allow the desired length of hose to be permanently stored outside the reel. Hose bumpers are included on reels purchased with hose.