SynMed supply an extensive range of water perfused oesophageal and anorectal catheters for GI Physiology. All of our water perfused catheters are made with medical-grade clear PVC tubing and can be used with any model of perfusion pump .These water perfused catheters have smooth surfaces and rounded tips that ensure maximum patient comfort and ease of intubation. Choose from a comprehensive selection of channel capacities, reservoir sizes and pressurisation systems to configure a water perfusion pump that will meet both your needs and your budget. The catheters that we supply also include radiopaque markers, a radiopaque line down the length of the tubing to identify channel one and numbered leads to avoid confusion.