3 3/8" Scalloped Poly Spa Jet Adjustable Black-Grey-White Waterway Spa Jet Insert Jet Poly Int Adj 5 sclp 3.5" Poly Jet, Directional Internal,Text.5-Scallop,Black Manf. Waterway Plastics Manf. # 210-6501 Poly Jet, Directional Internal,Text.5-Scallop,Gray Manf. Waterway Plastics Manf. # 210-6507 Poly Jet, Directional Internal,Text.5-Scallop,White Manf. Waterway Plastics Manf. # 210-6500