Description Multi-Fit Bus Expansion Valve Replaces OEM: 040138-144 Application: Bus Application Description: Expansion Valve Block-Standard Rating: 2 ton Port Type: 1/4″ R12 Port Refrigerant Type: R12/R134a O-Ring #1: 0011/0015 O-Ring #2: 0013/0015 Hose Inlet Size: #6 Hose Outlet Size: #10 Evaporator Inlet Size: #8 Evaporator Outlet Size: #10 Notes: O-ring style w/R12 port Liquid Inlet from Cond: #6 – 3/8″ Liquid Outlet to Evap: #8 – 1/2″ Suction Inlet from Evap: #10 – 5/8″ Suction Outlet to Comp: #10 – 5/8″