All of these connectors have latches that can be inserted into the connection to prevent accidental disconnection of the tube. This is a security factor. By working or moving the line under the sink it is possible to move the line inwards and then disconnect it, sometimes without a locking connection as in this case. Stay safe and secure the connection with this type of fitting.
Joywayus 5/8" ID Hose Barb Hex Union Brass Fitting Water/Fuel/Air With 10 Stainless Steel Clamps (Pack Of 5)
13 Review
Vacuum cleaner Dreame V9 Global, white
145 Review
DIGITEN DC 12V 1/4" Inlet Feed Water Solenoid Valve Quick Connect N/C Normally Closed No Water Pressure
14 Review
1 Inch Beduan Brass Electric Solenoid Valve, 12V Normally Closed Air Valve For Water, Gas, Fuel, And Oil
10 Review