CMP Crown air control

This air valve, manufactured by CMP, adjusts the flow of air being sucked into the jets by the Venturi effect, and therefore the intensity of the massage. It connects to 1" pipe (33 mm diameter).

Dimensions
Diameter of the face: 74 mm
Drill diameter: 41 mm
Length: 116 mm
Top diameter (where the cap screws on) : 62 mm

Part numbers
CMP : 25090-807-000
Marquis Spa : 340-6251