67mm cap diameter. Common air control venturi valve for in-ground spas and swimspas. Hydroair / Balboa. Cap fully unscrews to adjust air into jets.
Specifications:
- Cap Diameter: 67mm
- Internal threaded part is approx 32mm diameter
- Outer Body Thread: 41.5mm
- Hole Size Required: 42mm
- Pipe size: 25mm / 1″ PVC
B-10-2100WHT / hai10-2100wht