Scubapro Nexus Purge Valve Scuba Diving SnorkelThe Nexus snorkel by SCUBAPRO combines comfort and performance for snorkeling and recreational diving. Its oval shaped, large bore upper barrel minimizes drag and increases airflow, helping you breathe easy during extended underwater sessions. A splashguard style top deflects surface water, while an angled purge valve keeps bubbles away from the mouth for easier clearing. The rotating mouthpiece enhances comfort during long snorkeling sessions, and