The IST RA2 1/2” Male to 3/8” Female Hose Adapter is a low-pressure connector that's an essential addition to any save-a-dive kit. Use it with a Y-block to adapt mismatched low-pressure hose connectors, or connect a 1/2" low-pressure hose to a 3/8" low-pressure hose to create a longer, single hose for added reach. Don't let mismatched ports or insufficient hose length keep you from diving—keep a variety of adapters on hand to ensure every dive goes smoothly.