Autodos Hose Connector 12 x 9mm x 0.25″
Precision Plumbing Connection for Hot Tub Systems
This Autodos Hose Connector provides a reliable reducing connection for hot tub and spa plumbing systems, allowing you to connect hoses of different diameters. The 12mm to 9mm reducer configuration with 0.25″ threading makes this an essential component for various plumbing repairs and modifications.
What is a Hose Reducer Connector?
A hose reducer connector is a specialized plumbing fitting designed to join two hoses or tubes of different diameters. This particular connector features a 12mm barb on one end and a 9mm barb on the other, with a 0.25″ threaded connection. The barbed design creates a secure, leak-resistant seal when paired with flexible tubing and hose clamps.
Key Applications
This connector is commonly used for:
- Connecting filter systems to circulation pumps
- Adapting dosing system tubing to main plumbing lines
- Repairing or modifying existing plumbing configurations
- Integrating automatic dosing equipment
- Joining flex hose sections of different sizes
Features & Benefits
Dual-Size Design
The 12mm x 9mm configuration allows you to adapt between two common hot tub tubing sizes, providing flexibility when working with mixed plumbing systems or replacing components.
Barbed Connection
Raised barbs on each end grip the inside of flexible tubing, creating a mechanical seal that prevents hoses from slipping off under pressure.
Compact & Lightweight
At just 30 grams, this fitting is easy to handle and install in tight spaces within your hot tub cabinet.
Threaded Option
The 0.25″ thread provides an additional secure connection method for compatible fittings.
Installation Guidelines
- Ensure both hoses are cut cleanly and squarely
- Slide hose clamps onto each hose before connection
- Push hose firmly onto barbed ends until seated past all barbs
- Position clamps over the barbed area
- Tighten clamps securely to prevent leaks
- Test connections under operating pressure
When to Use This Connector
Consider this reducer connector when:
- Replacing a damaged or leaking connection
- Installing automatic dosing equipment
- Adapting between metric and imperial tubing sizes
- Modifying plumbing to accommodate new components
- Upgrading filtration systems
Compatibility Notes
This connector works with flexible PVC tubing, vinyl hose, and polyethylene tubing commonly found in hot tub plumbing systems. Verify your existing hose dimensions before purchasing to ensure proper fit. The 12mm end accepts hose with approximately 12mm inner diameter, while the 9mm end fits 9mm ID tubing.
Product Specifications
| Specification | Details |
|---|---|
| Product Type | Hose Reducer Connector |
| SKU | 7165639018 |
| Connection Size 1 | 12mm |
| Connection Size 2 | 9mm |
| Thread Size | 0.25″ |
| Weight | 0.03 Kilograms (30g) |
| Length | 0.03 Meters (30mm) |
| Width | 0.03 Meters (30mm) |
| Height | 0.03 Meters (30mm) |
| Volume | 0.001 Cubic Meters |
| Connection Type | Barbed with Thread |
| Application | Hot Tubs, Spas, Dosing Systems |
Maintenance Tips
- Inspect hose connections regularly for signs of wear or leaking
- Replace hose clamps if they show corrosion or have lost tension
- Check that hoses remain firmly seated on barbs
- Replace connector if barbs become damaged or worn
Why Choose This Connector?
As a retailer of hot tub spare parts, I stock this Autodos connector because it addresses a common need in spa plumbing—adapting between different hose sizes. The barbed design ensures reliable connections, and the compact dimensions make it suitable for installation in confined spaces. Quality plumbing fittings like this prevent leaks and maintain system efficiency.
Note: Always use appropriate hose clamps to secure connections. Check for leaks after installation and before regular operation.



