The face diameter of Waterway Jumbo Jets is 7.5 Inches. If you are installing a new Jumbo Jet, you will need a large flat area and the recommended spa hole size is 5-3/4".
The Waterway Jumbo Jet has pulsating action with adjustable jet pressure.
Waterway Jumbo Jet Body. The connections are 1-1/2" Slip Water and 1" Slip Air.