Patriot Weighted Black Vinyl Aeration Tubing .375" x 30' .375" x 30' Piece of Hose: Easy to connect, disconnect or replace for convenient custom plumbing Heavy Duty, Thick Wall PVC Remains Flexible Even In Cold Water Durable & Crush Resistant For years Of Reliable Service In Any Water Feature Self-Weighted For Easy, Tangle-Free Installation: 3/8" Tubing Available In Continuous Lenths To 300' (Fish and wildlife safe) 7 lbs. Ships ground package