U.S. Hose & Coupling's hydraulics division carries a full line of hydraulic hose products and fittings to be used in situations where a high-pressure-no-leak seal is paramount. Hydraulic assemblies generally operate under immense amounts of pressure such that any degradation in hose integrity can result in a major spillage of hydraulic fluid, rendering powerful hydraulic systems useless. The most common place for leaks in hydraulic systems are in the joints and fittings.