silicon tube 3 mm id x 5 mm od x 6.65 feet length Silicone Tube, 3mm ID, 5mm OD, 6.56', Flexible Silicone Rubber Tubing, Water Air Hose Pipe, Transparent, for Pump Transfer Silicone Tube, 3mm ID, 5mm OD, 6.56', Flexible Silicone Rubber Tubing, Water Air Hose Pipe, Transparent, for Pump Transfer Silicone Tube, 3mm ID, 5mm OD, 6.56', Flexible Silicone Rubber Tubing, Water Air Hose Pipe, Transparent, for Pump Transfer