This is the Sherwood Hi-Viz Octo w/ Yellow Face Cover Octopus for Scuba DivingFeatures: The ONLY Pneumatically Balanced Valve Body in a rental/entry level regulator Single Tube Balanced Valve Body provides improved reliability and performance Hi-Viz Yellow 36" Hose Larger diaphragm for optimal response to inhalation. Larger exhaust valve for decreased exhalation resistance. Resilient silicone rubber seat. Precision - ground stainless steel cam and Delrin lever for smooth effortless breathing. High impact housing for rugged applications. Hi-Viz yellow face cover. Simple to maintain. The Sherwood Octo is suitable for water temperatures warmer than 50oF (10oC). Meticulously crafted for exceptional breathing performance, the Sherwood Octo&';s Pneumatic Balanced Valve Body ensures a superior diving experience, especially for novice divers. Trusted for decades as the premier choice for rentals, the Sherwood Octo combines simplicity, reliability, and easy maintenance, making it the perfect companion for divers of all levels. Elevate your underwater adventures with the assurance of top-notch quality.