Tailpiece for 3/16 Inch ID Vinyl Tubing 3/16" Tailpiece / Hose Nipple Fits a 3/16" I.D. Vinyl Hose or a 1/4" I.D. Polyethylene Hose Nickel-Plated for durability Used to connect shanks and couplers to beer lines Requires a neoprene washer for a tight seal and fits standard 7/8-14 beer line nut