This hot tub jet is a E1, which signifies that it is a medium sized jet
Beachcomber’s medium size roto hot tub jet offers a single jet, housed in a centrifuge orifice for vigorous massage. The centrifuge spins, along with the directional jet stalk.
Posilock system (screw in), 3.0" across jet face
For Beachcomber Hot Tub Models from 2011 to present