Our water tank connection is made of high-quality brass, and the surface is polished. The rain barrel connector is rust-resistant, corrosion-resistant, durable, and suitable for use in various weather conditions. --The water tank joints use safe and environmentally friendly materials, non-toxic and odorless, will not pollute water resources. We provide you with rubber seals to ensure that no water drips. Specification: length 39mm. Internal thread: 3/4 inch (through hole) External thread: 1 inch. Packing: 1x water butt screw connection, 2x sealing rubber. Please confirm the size before purchasing. --You can easily attach an outlet tap to your water butt by the barrel connection .It does not require tools to install and is easy to uninstall. Our precise sealed hose parts ensure perfect watering. --The universal water tank interface can be installed on various barrels, containers or as a perfect watering device. The brass water tank joints can be used for water tanks, rain barrels, buckets, water towers faucets and hoses. Material: High-quality brass Size: 3/4 inch Weight: 2 pieces of 196 g Package includes:2 x Tank Hose Connector 2 x Rubber gasket