1st Stage Regulator Spec: - Over-balanced diaphragm design delivers superior breathing performance even at increased depths. - Made with corrosion resistant marine chrome plated finish. - Ventilation rate (air supply/3000psi) : 135 SCFM - Intermediate pressure: 135 - 145 psi (9.5 - 10.2 bar) - High pressure port: (7/16"-20 UNF) x 2 - Low pressure port: (3/8"-24 UNF) x 5 plus swiveling turret. 2nd Stage Regulator Spec: - 150PSI maximum intermediate pressure. - 1.2 to 1.4 CIW (column Inch of water) - inhalation effort (ADJ-KNOB on Max) - 1.1 CIW exhalation effort - 30+SCGM (air supply: 3000psi) - Weight: 251 grams - Adjustable.

Environmental sealing prevents internal corrosion, contaminants and icing of the first stage. High performance over-balanced first stage. Large purge button. Comfortable silicone mouthpiece. High quality regulator first stage and second stage with 27" hose.

Item Dimensions LxWxH: 7 x 5 x 3 inches. Educational Objective: STEM. Material: Silicone. Brand: Scuba Choice. Manufacturer: Aqua Edge. Department: unisex-adult. Customer Reviews: 4.6 out of 5 stars 15 ratings 4.6 out of 5 stars. Best Sellers Rank: #515,241 in Sports & Outdoors. Manufacturer recommended age: 18 months and up. Item model number: SCR-03-DIN-AJ. : B007XK333Q. Country of Origin: Taiwan. International Shipping: This item can be shipped to select countries outside of the U.S. Learn More. Domestic Shipping: Currently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues. Item Weight: 2.92 pounds. Product Dimensions: 7 x 5 x 3 inches.