Bard Medical Bardex® Whistle Tip Latex Urethral Catheter 28Fr, Sterile, Single-useBard Bardex® Whistle Tip Latex Urethral Catheter has open whistle tip and a single drainage eye which facilitates maximum flow. It is for single use and sterile. This catheter is manufactured with construction methods that mirror those employed for foley catheters, which ensures comparable levels of quality and performance.