The Hot Gas Bypass Valve,1/2 is compatible with GEM ELRD 300, ELRD 400, ELRD 500, ELRD 600, ELRD 750, ELRD 1100, ELRD 1254, 2KD7 400, 2KD7 500, 2KD7 750, 2KD7 1000, 2KD CC 750, and 1 other GEM models. Always cross-check your machine's model number, or contact our support team to confirm fitment. GEM Equipments Pvt. Ltd. is an ISO 9001:2015 certified, India-based manufacturer (since 1984) of compressed air dryers, cooling towers, industrial chillers, and compressed air treatment accessories, headquartered in Coimbatore, Tamil Nadu. All spare parts on Gemspares.in are genuine and sourced directly from the manufacturer.