Worthington 420 tanks and cylinders feature RegO valves with a 10-year warranty, x-ray 100% of seam welds to ensure quality and integrity, and follow strict paint quality control processes. They package products with cardboard sleeves to protect the paint during shipping and use durable, color-matched HDPE lids engineered to disperse water away from the lid. Worthington backs its products with a three-year warranty.