PVC (also known as U-PVC PVC-U non-plasticized polyvinyl chloride) pipes and fittings are suitable for many applications. They may be the most widely used plastic piping systems in industrial pressure applications and are only found in the water treatment, swimming pool, cooling, heating, chemical and processing industries. It can also be used for household purposes, such as marine aquariums, fish/tanks, ponds, fish and vegetable symbiosis and hobby crafts.product information:Name: 20/25/32mm PVC connectorMaterial: PVCInterface size: 1/2", 3/4", 1" internal/external thread to ID 20/25/32mmApplication: connect water pipe, DIYColor: blue, whitespecification:Type 1: 1/2" external thread to ID 20mmType 2: 3/4" external thread to ID 25mmType 3: 1" external thread to ID 32mmType 4: 1/2 " internal thread, to ID 20mmType 5: 3/4" internal thread to ID 25mmType 6: 1" internal thread, up to ID 32mmPackage includes: 2Pcs x connector (type and color you choose)note:The size is measured by hand, please allow slight measurement errors. Due to the color display of different monitors, the color of the photo may be slightly different from the actual product.