Hose couplings and connectors are used whenever a hose needs to be firmly attached to a liquid, air, or even moving granulated solids like flour, wheat, or sugar. Typical examples might include:
Pumps
Kitchen or external taps for watering greenery and gardens
Water sprinklers
Pressure washers
Industrial water guns
Spigots
Heating, ventilation, and air conditioning systems
Industrial cooling systems
Ink transfer systems within the printing industry
Bulk transfer of granular particles
In addition, two lengths of hose can be joined via a double-ended connector to:
Extend a length of hose an additional distance
Divert water flow in two directions
Repair damaged hosing (performing a similar function to hose protectors)