HydroAir Wall fitting assembly for gunite spas

This wall fitting is designed for concrete spas and includes an air intake for Venturi suction. It is usually used with an Eyeball jet, although other configurations are possible.

For the Venturi system, you will need a length of 7 to 10 cm between the end of the injector and the nozzle. You can therefore cut the wall fitting to the desired length for optimal Venturi suction. You should plan on a flow rate of approximately 5 m³/hour for each jet of this type.

Dimensions
Length: 255 mm
Inside diameter of jet insertion: 40 mm
Inside diameter water inlet: 48 mm, for 1.5-inch hose
Inside diameter air inlet: 21 mm, for 1/2-inch hose
Outside diameter air inlet: 27 mm

Pipe connections
Water: 1.5-inch pipe. A 50 mm connection is possible with an adapter.
Air: 1/2-inch pipe. A 3/4-inch connection is possible with an adapter.

To dismount this part and add a Venturi extension to the injector clipped into the tee, we recommend the use of an 11/16" drive socket.

Part numbers
Balboa / HydroAir: 10-4320