The Ralston hose and fittings system comprises wire wound hoses with connectors that require no tools by using leak-proof o-ring seals suitable for pressures up to 6,900 psig. A unique feature is the adapters for industry standard fittings such as Swagelock, Gyrolock and Tylock. The system also includes adapters for common pressure transmitter bleed ports from Foxboro, Honeywell, Rosemount and Yokogawa.