This hot tub jet is classified as E3, which signifies that it is a extra large sized jet
Beachcomber’s extra large spinner jet fixture offers a deep lumbar massage. Its spinning centrifuge distributes water through a single large jet opening, with the stream broken during rotation by three fixed spokes.
Posilock system (screw in), 5.0" across jet face
For Beachcomber Hot Tub Models from 2011 to present