Rev Pump Trigger Penis Pump 8.5 Inches Wishlist @ The Knicker Fairy Intro Level Penis Pump with Trigger Grip & Air Gauge Lynk Pumps: Performance VX6 Vacuum Penis Pump with Brass Pistol & Pressure Gauge Rev Pump Automatic Penis Pump Pink Peck. The Rev Pump Gauge Pistol Grip Penis Pump packs a punch with its pistol pumping action. Designed with an easy grip pumping action and pressure gauge, you will know exactly what pressure you are under, so you can ensure you go back to the same pressure time and again. With an insertable length of 20cm, and a diameter of 7cm, this clear pump delivers pressure to help you grow. Penis pumping is a growing past time, but always remember to go in flaccid, and let the pump take you to new lengths. Brand: Rev Pump. Colour: Clear Black. Size: Total Length 22cm, Insertable Length 20cm, Diameter 7cm.