2 products in this product line TR-620 series TR-620 RD proInfo TR.NOABα inchmminchmm TR-621A 1.53 38.9 2.97 75.4 65 TR-622A 1.97 44.5 4.53 115 90 SETR-623A 1.53 38.9 2.25 57.2 65 TR-622A RD proInfo TR-622A system is used for farm tractors and off-the-road equipements. Air-liquid tubeless tire valve, allow liquid to enter tubes to maintain balance even in the rugged field. Bent type. Excellent quality, high grade brass which never crack , high grade tire valve core which never slowly leakage. Made by CNC lather, with high quality control.