1、8 impellers water flow meter helps you to observe the speed and working states of the water flow 2、Made of high-quality acrylic material, durable to use 3、Polished surface processing amplifies cutting property and prolongs using life 4、Adhesive sealing, easy to install and use 5、G1/4inch thread is widely fit for most computer cooling tubes or connectors Features: 8 impellers water flow meter helps you to observe the speed and working states of the water flow. Made of high-quality acrylic material, durable to use. Polished surface processing amplifies cutting property and prolongs using life. Adhesive sealing, easy to install and use. G1/4inch thread is widely fit for most computer cooling tubes or connectors. Specifications: Type: Quadrate 3 Ways Model: LSJ-PM3 Optional Color: Black, White, Red, Blue Material: Acrylic Screw Thread: G1/4" Thread Outer Diameter: 12.9mm / 0.51in Surface Finish: Polishing Sealing: Adhesive Size: Approx. 4 x 4 x 2.3cm / 1.6 x 1.6 x 0.9in Weight: Approx. 37g Package Included: 1pcs x 8 Impellers Flow MeterNote:Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering.