Those couplings are used for potable water, lavatory, air start, APU, engine oil and preconditioned air components.
Oil Fill Coupling Assembly, Size -6 Push-Pull Type in Stainless Steel Oil Fill Coupling Assembly, Size -6...
Oil Fill Coupling Assembly, Size -6 Push-Pull Type Oil Fill Coupling Assembly, Size -6...
Pneumatic Air Start Coupling Assembly With Hose Barb Connector Pneumatic Air Start Coupling Assembly...
Pneumatic Air Start Coupling Assembly With Hose Flange Connector Pneumatic Air Start Coupling Assembly...
Pneumatic Air Start Coupling Assembly with Threads Only- No Hose Fitting. Pneumatic Air Start Coupling Assembly...
Pneumatic Air Start Coupling Assembly With Hose Barb Connector And Screen Pneumatic Air Start Coupling Assembly...