Air Supply 1/4" Spring Check Valve – Spa Air Blower Backflow Preventer (112500)

Key Features

• Prevents Backflow: Designed to stop water from flowing backward into your air blower or spa control system.
• Spring-Loaded Mechanism: Internal spring ensures positive shut-off, even in low-pressure systems.
• 1/4-Inch Barb Connection: Ideal for smaller air lines, ozone tubing, or accessory check points in your spa or jetted tub.
• Durable Thermoplastic Construction: Resistant to spa chemicals, heat, and corrosion for long-lasting performance.
• Genuine OEM by Air Supply of the Future: Trusted by spa technicians and OEM manufacturers nationwide.

Product Overview

The Air Supply 112500 Spring Check Valve is a 1/4-inch one-way valve designed for spa and hot tub air systems. It prevents unwanted water backflow into sensitive components like blowers, ozonators, or air switches. The internal spring design ensures a reliable seal that opens with airflow and closes instantly when flow stops — making it more dependable than flap-style valves in high-moisture environments.

Compact and easy to install, this check valve is a low-cost insurance policy against water damage in your spa equipment.

Recommended Uses

• Air blower protection (prevents water intrusion)
• Ozone generator line protection
• Air switch lines or small tubing where backflow prevention is required
• Custom water feature or therapy tub installations

Specifications

• Manufacturer: Air Supply of the Future
• Part Number: 112500
• Type: Spring check valve
• Connection Size: 1/4" barb (both ends)
• Material: High-strength thermoplastic
• Design: One-way with internal spring mechanism
• Pressure Range: Low to moderate airflow systems

Installation Instructions

1. Turn off spa power and isolate affected air line
2. Cut tubing cleanly and insert barb ends into both sides of the valve
3. Ensure arrow on valve body is pointing in direction of airflow
4. Secure with hose clamps if needed (optional)
5. Test blower or ozone system to ensure proper operation

Why Buy From Wild West Pool Supplies?

• Always genuine Air Supply parts – never aftermarket substitutes
• Same-day shipping on in-stock items
• Expert support to help with product matching or troubleshooting
• Over 35 years serving spa service techs, dealers, and homeowners
• Thousands of 5-star reviews from satisfied customers

Shipping & Returns

• Shipping: Orders typically ship in 1–2 business days via USPS or UPS
• Returns: 30-day return policy for unused, unopened products

Need Help with Spa Air Line Parts?

Unsure if this valve fits your application? Call our product support team at (888) 657-0426 or contact us online. We’ll help you find the right fit and avoid costly water intrusion issues.