Generic Pneumatic Brake Fluid Bleeder w/4 Master Cylinder Metal Adapters 90-120 PSI Pneumatic Brake Fluid Bleeder w/ 4 master cylinder adapters 90 - 120 PSI Brake fluid bleeder works with your air compressor to quickly assist in your brake bleeding!The simplicity of this tool allows brake bleeding to get done by one person easily. Flush and refill the entire brake system by yourself with this brake fluid bleeder. Convenient one-person operation Flush and refill entire brake system 34 oz Waster Brake Fluid Tank 24 oz New Fluid tank that inserts into your master cylinder with provided adapters Master Cylinder Reservoir Adapters : 1.25 INCHES.-1.60 INCHES (32 to 41mm) 1.10 INCHES.-1.45 INCHES (28 to 37mm) 0.95 INCHES.-1.25 INCHES (24 to 32mm) 0.80 INCHES.-1.20 INCHES (21 to 30mm) Air requirement: 90 to 120 PSI, Air inlet: 1/4''- 18 NPT Inlet Thread Type: American Type.