Ridgid VT1755 3 Piece Hose Adaptor Kit for Hose Extension and Accessory Connection INCLUDES: 1 x 2-1/2 to 2-1/2 Connector, 1 x 2-1/2 to 1-7/8 Connector, and 1 x 1-1/4 to 1-7/8 Connector APPLICATIONS: Use these adaptors to hook up your Ridgid plastic vacuum or hose extensions to each other, regardless of their diameter sizes TWIST LOCK MECHANISM: Accessories will lock into these adaptors snugly at the twist of your wrist, making a strong connection that is easy to perform DURABLE PLASTIC: These adaptors are as tough as the Ridgid hoses and accessories that they connect, meaning theyll hold up to impacts without ruining the connection USE THEM TOGETHER: These adaptors can be used in tandem with each other to massively extend your Ridgid hoses for intense vacuuming projects around the home or professional jobsite