Specifications: The throttle valve is made from imported material, which is integrated die-casting, and durable. SL8 throttle valve with good sealing performance is convenient to install and disassemble. The throttle valve can withstand greater and stronger pressure without tripping, and has a longer service life. Simple and dexterous design, various model can meet any pipe layout needs. The pipe body can be rotated 360 degree after timely installation. Item Name: Throttle Valve Material: Brass, Plastic Working Pressure Range: 0-1Mpa Negative Pressure: -100Kpa (10Torr) Guaranteed Pressure Resistance: 1.5Mpa Working Temperature Range: -20-70 Celsius Degrees Application: Hose, Cylinder, Pipeline Features: Speed Control, Throttle Valve, Quick Connect, Durable Interface Inner Diameter: 8mm/0.31" (Approx.) Size Details: 1/8 Inch: 4cm x 3.4cm x 1.5cm/1.57" x 1.34" x 0.59" (Approx.) 1/4 Inch: 4.8cm x 3.8cm x 1.9cm/1.89" x 1.5" x 0.75" (Approx.) 3/8 Inch: 5.4cm x 4.2cm x 2.3cm/2.13" x 1.65" x 0.91" (Approx.) 1/2 Inch: 6cm x 4.7cm x 2.8cm/2.36" x 1.85" x 1.1" (Approx.) Notes: Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Throttle Valve