The PVC pipe fitting is used to connect the two pipes which have the same diameter. The connector end is used to connect non-threaded and threaded pipes or pipe fittings. Used for connecting valves in a piping system.Specification Large Inner Diameter: 20mm/0.8 inchSmall Inner Diameter: 13x16mm/0.51 x 0.63 inchLarge Outer Diameter: 93mm/3.66 inchSmall Outer Diameter: 26mm/1 inchHeight: 24mm/0.95 inchPacking List: 2 x PVC Pipe FittingAdvantage PVC material fitting has strong corrosion resistance, high mechanical strength, and wear resistance.Smooth-finished internal reduce friction and allow water to flow smoothly.Instruction Connect the two pipes, the effect will be better if the pipe fitting is used together with adhesive (not included here).NOTE: Please check the size you need before buying.