Features: Suitable for the connection of bottom and lower water pipe of Fish Tanks. Used to connect the water pipe of both side and prevent the aquarium from leaking. Crafted from PVC, easy to use. Widely use to Open hole connection for and outlet pipe of Fish Tanks, water tanks... Small size, convenient and easy to use, long time service, not easy to damage, you can use for long time. 4 Different size to choose! Specifications: Component: PVC SizeA: Approx.20mm/0.79in SizeB: Approx.25mm/0.98in SizeC: Approx.32mm/1.26in SizeD: Approx.40mm/1.57in Quantity: 5Pcs Package Includes: 5Pcs Water Pipe Joint Connector note: 1.Please allow 1-2cm errors due to manual measurement, note that you donot mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual color.