The XTX40 regulator incorporates a new two-shot high strength composite front cover, improving the durability of the most vulnerable part of the demand valve. The new ergonomic Venturi lever of the XTX40 has been designed to reduce the amount of grit ingress. A new swivel hose connection is available at an extra cost. This allows the demand valve end of the hose connection to rotate and pivot, providing a more comfortable fit. A new silicone exhaust valve has been used on the XTX40 regulator improving breathing performance.