Description
Optimize your pilot burner performance with the reliable BASO Y99AY-4—a precision manual pilot-adjust adapter from BASO Gas Products, engineered for fine flame control and compact installations.
Key Features
- Manual flame adjustment: The Y99AY-4 allows you to adjust the pilot flame height for devices that require lower BTU/hr, helping maintain optimal burner performance.
- Compact “elbow” design (90° pilot valve version): This model is designed as a 90° elbow style adapter for installations where space is limited or a directional change is needed.
- Compatible thread sizes: Engineered for a 1/8″ NPT inlet and 1/4″ compression coupling outlet, enabling easy integration into many pilot burner systems.
- Precision adjustment screw: Built-in adjustment screw enables fine-tuning of pilot flame height—essential for reliable operation and flame stability.
- Recognized manufacturer: Produced by BASO Gas Products, a trusted name in gas controls and accessories—giving you OEM quality and compatibility assurance.











