1. R600a can protect the environment 2.Low cost, low working pressure 3.The noise is small . 4.Resonanble price. Specifications Quick DetailsRefrigerant Gas ... : about 20 days SpecificationsRefrigerant Gas R600a can protect the environment, low cost, low working pressure, the noise is small .,1.It has zero ... Liquid, 25°C, [KJ/(kg•°C)]2.38ODP0GWP0.1 R600A protect the environment