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This is a 10 lb (160 oz) cylinder of R-454B refrigerant bundled with a charging gauge, hose and system adapters. R-454B is the A2L replacement for R-410A in new equipment, a zeotropic blend of 68.9% R-32 and 31.1% R-1234yf with a GWP of 466, about 78% below R-410A's 2088. The kit suits HVAC techs commissioning or topping up new A2L systems that specify R-454B, not older R-410A units. Against buying refrigerant and manifold separately, it saves sourcing the gauge and adapters, but the included gauge is a basic charging tool rather than a full manifold set.
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This kit contains 10 lb (160 oz) of R454b refrigerant, along with a gauge, a hose and system adapters for recharging. R454b is a low global warming potential (GWP) refrigerant based on a hydrofluoroolefin. It is meant to replace R410a in new equipment designs.
R454b is a zeotropic blend of 68.9 percent difluoromethane (R-32) and 31.1 percent 2,3,3,3-tetrafluoropropene (R-1234yf). It is also sold under the names Opteon XL41, Solstice 454B and Puron Advance. It was formerly known as DL-5A, and Chemours developed and manufactures it.
R454b has a GWP of 466, which is 78 percent lower than R410a's GWP of 2088. It is non-toxic and mildly flammable, with an ASHRAE safety classification of A2L. In the United States, it is expected to be packaged in a container that is red or has a red band on the shoulder or top.
