Jacuzzi® Air Control Body and Stem. (J400, old J200). Part No.6540-377
Jacuzzi® Hot Tub Air Control Body and Stem is used on the J210 from 2007 to 2012 and the J230 up to 2008. This part is also used in the J400 series from 2006+.
Please Note: The knob for each spa series is sold separately (Part No. 6540-361 & 20101-001)