Jet Body Used with Waterway Cluster Storm Jet Inserts Jet Body,Adj.Cluster Storm,3/8"RB Air x 3/4"SB Water Horizon # 55-270-1380 Manf. Waterway Plastics Manf. # 212-1560G Adjustable Cluster Storm Jets Adjustable on/off control, optional self-alignment ring for uneven surfaces, 2" face diameter, 1-1/2" hole size