Garden hoses -1/2'' dn15# 4 fmf brass 3 way threaded fitting connector 4 fmf Description: High quality material, durable and never fade. Fully automatic high-precision CNC lathe processing. Standard interface, clean wire, glossy appearance. Durable, easy to change and connect between pipes. Variable diameter joints can make all kinds of pipe and pipe connections, telescopic, compensation, displacement etc. Size Chart: #1 Outer Diameter: 20mm/0.79inch Thread Length: 12mm/0.47inch Length: 51mm/2.01inch Width: 39mm/1.53inch #2 Inner Diameter: Approx. 19mm / 0.75inch Outer Diameter: Approx. 20mm/0.79inch Thread Length: 12mm/0.47inch Length: 49mm/1.93inch Width: 35mm/1.38inch #3 Inner Diameter: Approx. 19mm/0.75inch Thread Length: 16mm/0.63inch Length: 47.6mm/1.87inch Width: 34mm/1.34inch #4 Inner Diameter: Approx. 19mm / 0.75inch Outer Diameter: Approx. 20mm / 0.79inch Thread Length: 11mm / 0.43inch Length: 44mm / 1.73inch Width: 39mm / 1.54inch Package Includes: Brass Coupler Connector, 1 Piece Note: As different computers display colors differently, the color of the actual item may vary slightly from the above images. There is 2-3% difference according to manual measurement. Please check the measurement chart carefully before you buy the item. Methods: 1. Remove impurities in pipe and joint before taking over. 2. In order to ensure better sealing, it is recommended to use the raw rubber tape on the threaded connection to make it more tight and waterproof. 3. Tighten the threaded pipe joints, paying attention to the proper tightening torque.