Bluon is the R-22 replacement solution! Bluon TdX 20 (R-458a) is a breakthrough refrigerant that increases performance of R-22 HVAC systems in both commercial and residential applications. Bluon TdX 20 has the following benefits: Increased efficiency compared to R-22 (5%-10% for smaller systems & 15%-25% for larger systems). Virtually identical capacity compared to R-22 (in many cases, capacity increases). No oil change EVER required (compatible with MO and POE oil). Extended equipment life due to lower operating pressures and reduced head temps. ASHRAE & EPA approved, FAR compliant for Federal buildings and warranty protected In addition to the product itself, Bluon also has REAL technician support with a 24/7/365 hotline, a training course and the innovative Bluon Mobile App. Great refrigerant + awesome app + killer tech support = complete R-22 solution.