RectorSeal Novent Locking Refrigerant Caps 11.4 in. W X 1.2 in. H Silver

For any gas (A2L compatible), 1/4 in. and 5/16 in. thread, key. Precision machined from high-grade brass and covered by a shielding aluminum shroud, Novent caps require special tools to be applied and removed. All caps are embossed and color-coded. Proper installation helps stop accidental refrigerant mixing in A/C systems.