The Clesse CSR485 Low-Pressure Cylinder Gas Regulator: Meeting COP32 Standards with OPSO for Enhanced Safety The CSR485 stands out as a premier low-pressure cylinder regulator, meticulously designed to comply with the latest COP32 industry regulations. A key feature of this regulator is the inclusion of an Over Pressure Shut Off (OPSO) mechanism, a critical safety enhancement that significantly reduces the risk of pressure-related accidents. Incorporating the OPSO technology, the CSR485 regulator provides unparalleled protection for both downstream pipework and appliances, ensuring the highest level of safety for your home or business. This commitment to safety is further demonstrated by our policy of phasing out non-OPSO products. We continue to offer these products only when accompanied by explicit disclaimers, making it clear that they do not meet the current indust