What is the difference between a jet face and a jet body? Holly September 13, 2021 14:02 Updated Follow The jet face is the part of the jet where water flows through and is normally powered by a spa boost pump. The jet body is the part the jet face sits inside, the body has a seal around the outside so water cannot leak to the underside of the spa. Related articles What information do you need to find a replacement for my jets? How do I maintain my spa jets? What level of UV light do your UV Sanitizing system produce? Why does my spa jet keep popping out of it's socket? Comments 0 comments Article is closed for comments.