LVJ Regular 3.5 and 4-inch jets
Here you will find the LVJ "Regular" jets. You can easily switch the jets, the diffuser being the same on all models (see illustrations below).
They have a face diameter of about 90 mm (3.5"), 102 mm (4") or 115 mm (4" large face), depending on the jet.
Unless otherwise stated, they are supplied with the socket and the gasket.