The Knipex 81 11 Siphon and Connector Pliers are specialist adjustable pliers designed for gripping, tightening and loosening a wide range of cylindrical components from 10mm to 75mm diameter. Ideal for plumbers working with siphon connections, plastic pipe fittings and round union nuts, these pliers deliver excellent grip without damaging sensitive surfaces. The 25-position adjustable box joint allows fine adjustment to suit diverse diameters, ensuring optimal grip on everything from small connectors to large oil filters and plastic pipes. The changeable gripping jaws feature a two-component plastic insert with a hard red carrier component for strength and a soft blue adhesive component for maximum grip on clean, oil-free surfaces. These versatile pliers are particularly effective for electrical contractors working with screw-connected connectors and couplings such as Cannon circular connectors, as well as for gently loosening hoses on nozzles and filter cartridges without causing damage. The ergonomic handle geometry provides comfortable control during repetitive tightening and loosening operations. Features and Benefits: • 25-position adjustment for precise sizing from 10mm to 75mm diameter • Exchangeable plastic jaws protect chrome, plastic and other sensitive surfaces • Two-component grip insert optimises adhesion on clean surfaces • Ergonomic handle design reduces hand fatigue during extended use • Suitable for siphons, oil filters, plastic pipes and electrical connectors Specifications: Working Capacity (diameter): Ø 10 – 75 mm Adjustment positions: 25