Jandy JXi 3" Air Intake Adapter | R0724600Engineered as a direct OEM replacement for Jandy JXi gas pool and spa heaters, the Jandy R0724600 is a 3 inch air intake adapter kit that allows the heater to pull combustion air from a remote, designated source instead of the immediate equipment area. Adequate combustion airflow is one of the core requirements for efficient, safe, and long lasting heater operation, which makes a cracked, missing, or deteriorated intake adapter a serious concern that