Knipex - The KNIPEX Siphon and Connector Pliers "SpeedGrip" (81 11 250 & 81 13 250) are ideal for tightening and loosening siphon screw connections, plastic pipe connections and round union nuts,
Knipex V02 Replacement Plastic Jaws for 81-11-250/81-13-250, 2 Pair
Knipex 81 11 250 Siphon- and Connector Pliers 9,84" with plastic jaws - Amazon.com