Description: 【Premium Material】: The swimming pool filter pump hose connector are made of premium PVC material, which is not easy to break and can serve you for a long time. 【Function】: The pool hose adapters are universal for swimming pool pump and filter, with a threaded connection end of standard 20mm 1/2inch size. It's suitable for 12mm hoses. 【Easy to Use】: PVC pool fittings are fit for standard swimming pool accessories. You can quickly install it within minutes using just a screwdriver and pliers, saving your time and effort without the need for other tools. 【Wide Application】: These Pool Hose Adapters can be used as an inlet/outlet adapter for most above ground pool pump, filter, and skimmer. 【Package Includes】: The package includes 5 Barb Hose Tail End Connector Fittings with an outer diameter of 20mm at the plug end and 12mm at the pagoda end. Specification: Material: PVC Color: Deep Blue Size Chart: Threaded Outer Diameter 20mm Pagoda Outer Diameter 12mm Package Includes: 5 Pool Hose Adapters Note: Please allow slightly errors 1-2cm differences due to manual measurement.