ITEM NAME:5X(Mechanical Fitting Plastic Barb Non-Return Check Valve A8T3) 5X(Mechanical Fitting Plastic Barb Non-Return Check Valve A8T3) 5X(Product Name : Check Valve Material : Plastic Color : Clear White Port Diameter : 12mm/0.47" Overall Size : 39 x 21mm/1.5" x 0.8"(H*Max.D) Prevents damage to equipment, pumps, and flow systems by preventing backflow. Net Weight : 4g Package Content : 1 x Check Valve Note:Light shooting 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.).Net Weight : 4g.