The successful TDS Gull first stage can now be bought together with the new reversible Gull Z second stage regulator along with hose. Included carrying bag. Features Gull 1st Stage: First stage manufactured from a block of marine brass which is then chrome plated to increase corrosion resistance. Balanced pneumatically compensated diaphragm. INT or DIN connector that can be used at pressures of up to 300 bar (4350 psi). Adjustable intermediate pressure. Cold water and polluted waters protection kit included. 5 LP output (low pressure). One on top of the revolving turret, 3/8 ". 2 HP outputs (high pressure) 7/16 ". Adjustable intermediate pressure 0.35 +/- 9.7 bar (140 +/- 5 psi). Gull Tek Reversible 2nd Stage Features: Second stage made of chrome plated marine brass and thermoplastic which provide great strength and durability. Pneumatically compensated. Lighter than Gull Tek second stage predecessor. Heat exchanger that improves performance in cold waters. Easily replaceable mouthpiece for optimal fit. Control Venturi to minimize entry into continuous flow. Easy adjustment to control the inhalation effort. Reversible mounting from left or right side of the hose. Included regulator bag.