Balboa Hydro-Air (ITT) Magna Series Stacked Jet Assembly, 10-4831. Assembly includes Jet Body (10-4837) with Nozzle (10-4804), Gasket (10-5847) and Wall Fitting (10-4801). Therapy Option, or Jet Trim Kit sold separately. Fits Adjustable, Directional, Single and Dual Port Flowpath Jet Internals. Jet Body has stacked air water connections with 1.0 Slip Socket Water connection and 1.0 Slip Socket Air connection. 3 Spa Jet, requires 2-58 hole for mounting. Also available with 1.5 Water Connection, see part number 10-4833.