EZ Turn Anti-Blowback Adaptor is a 90? adaptor with a ÂºÃ® male fitting on one end and a ÂºÃ® female fitting on the other end to connect to any hose. The EZ Turn Anti-Blowback Fitting has a thrust bearing that reduces friction so the service hose can be easily connected to the access fitting while under pressure. The compact design fits in tight work spaces and the deep square knurling and textured orange and blue band allow for easy fingertip control. It is rated for R-410A, CFC, HCFC & HFC refrigerants.