This hot tub jet is classified as a E1, which means that it is medium sized
Beachcomber’s medium size massage jet offers three separate jets. This full body massage jetting system is enhanced by a rotating centrifuge that distributes the water through the 3 jet holes to provide a vigorous massage.
Posilock system (screw in), 3.0" across jet face
For Beachcomber Hot Tub Models from 2011 to present