https://www.hutchin-hydraulic.com/products/wbu-cross-tube-welded-hydraulic-cylinder.html The WBU Cross-tube welded hydraulic cylinders are one of HUTCHIN's the most popular items. This type of welded hydraulic cylinders, rated at 3000PSI, are mainly used in heavy duty and demanding applications. All welded hydraulic cylinders from HUTCHIN are equipped with HALLITE seals and have a warranty period of up to 2 years.All Rights Reserved