CONVENIENT DESIGN: Our hose pipe valve has a large handle, easy to achieve low torque smooth rotation handle.The red handle can be adjusted or completely turned off for easy operation. PRACTICAL FUNCTION: Aquarium water control valve helps control the water through your hosing. Used for water flowing control and regulation of aquariums fish . Enable you to adjust water flowing from low to high easily, practical tool. SIZE: 16-16mm, better suit your hose pipe. Please make sure to measure the before you purchase. SIMPLE INSTALLATION: No glue, tools or fixtures are and easy to install.Simply push the tube firmly against the barb and it fit very tightly without leakage.If necessary, use a hot air or hair dryer to soften of the pipe before inserting. USE WITH CONFIDENCE: Our aquarium water control valve is made of quality plastic material, can , sturdiness and durability, easy installation, and no leakage ball valve. Color: As Shown Material: plastic Package Contents: 1 x Aquarium Air Water Regulator Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.