Introduction
Thank you for choosing the JACO FlexPro Hybrid Air Hose. This manual provides essential information for the safe and effective use, setup, operation, and maintenance of your new air hose. Please read this manual thoroughly before using the product and retain it for future reference.
Safety Information
Always observe the following safety precautions to prevent injury or damage to the product:
- Maximum Pressure: Do not exceed the maximum working pressure of 300 PSI. Over-pressurizing the hose can cause it to burst, leading to serious injury.
- Inspection: Before each use, inspect the hose for cuts, abrasions, bulges, or damaged fittings. Do not use a damaged hose.
- Connections: Ensure all connections to air compressors, tools, and accessories are secure and properly sealed before applying air pressure.
- Disconnecting: Always relieve air pressure from the hose and tools before disconnecting any fittings.
- Temperature: Avoid exposing the hose to extreme temperatures outside its operating range.
- Chemicals: Avoid contact with harsh chemicals, solvents, or corrosive materials that could degrade the hose material.
- Trip Hazard: Lay out the hose carefully to avoid creating trip hazards in your workspace.
- Personal Protective Equipment: Always wear appropriate personal protective equipment (PPE), such as safety glasses, when operating air tools.
Package Contents
- 1 x JACO FlexPro Hybrid Air Hose (3/8" x 50 ft) with Dual 1/4" M-NPT Fittings
Specifications
| Brand | JACO Superior Products |
| Model Number | FlexPro |
| Material | Hybrid Polymer |
| Hose Length | 50 Feet (600 Inches) |
| Outside Diameter | 3/8 Inches |
| Nominal Wall Thickness | 0.625 inch |
| Maximum Pressure | 300 PSI (Pound per Square Inch) |
| Accessory Connection Type | 1/4-inch M-NPT |
| Color | Storm Gray |
| Item Weight | 5.46 pounds (2.48 Kilograms) |
| Special Features | Ultra soft & lightweight design with superior durability for all-day & all-weather performance |
Setup
- Uncoil the Hose: Carefully uncoil the JACO FlexPro Hybrid Air Hose from its packaging. Ensure there are no kinks or twists.
- Inspect Fittings: Examine the 1/4" M-NPT fittings at both ends of the hose for any damage or debris.
- Connect to Air Compressor:

Image: A person connecting one end of the gray JACO FlexPro air hose to an air compressor. The hose features a black rubberized bend restrictor near the fitting.
Thread one of the 1/4" M-NPT fittings onto the air outlet of your air compressor. Hand-tighten first, then use a wrench to secure it firmly. Do not overtighten. It is recommended to use thread sealant tape (not included) for an airtight connection.
- Connect to Air Tool/Accessory:

Image: Close-up of hands connecting the other end of the JACO FlexPro air hose to a brass quick-connect coupler. The hose fitting is visible with its black bend restrictor.
Attach the other 1/4" M-NPT fitting to your air tool or a quick-connect coupler. Ensure a secure connection. If using a quick-connect coupler, ensure it is compatible with 1/4" NPT fittings.
- Check for Leaks: Before operating, turn on the air compressor and pressurize the hose. Apply a soapy water solution to all connections. Bubbles indicate a leak, which must be tightened or re-sealed before use.
Operating Instructions
- Prepare Workspace: Ensure your workspace is clear of obstructions and that the air hose is laid out in a manner that avoids trip hazards and sharp edges.
- Connect Air Tool: With the air compressor off and pressure relieved, connect your desired air tool to the hose.
- Apply Air Pressure: Turn on your air compressor and allow it to reach the desired operating pressure for your tool. Do not exceed 300 PSI.
- Use the Hose: The FlexPro Hybrid Air Hose is designed for superior flexibility and resistance to kinking, even in cold weather. Its lightweight nature allows for easy maneuverability around your workspace.

Image: The gray JACO FlexPro air hose is neatly coiled on the ground next to a black portable air compressor, demonstrating its flexibility and ease of storage.
- Bend Restrictors: The integrated rubberized bend restrictors at each end help prevent kinking and extend the life of the hose near the fittings.

Image: A close-up view of the JACO FlexPro air hose showing its reinforced rubber bend restrictor and a digital tire pressure gauge connected to the hose, highlighting the durability feature.
- After Use: Turn off the air compressor and relieve all air pressure from the hose and tools before disconnecting.
Maintenance
- Regular Inspection: Periodically inspect the entire length of the hose and its fittings for any signs of wear, damage, or leaks. Replace the hose if any damage is found.
- Cleaning: Clean the hose with a damp cloth and mild soap. Avoid using harsh chemicals or solvents that could damage the hybrid polymer material.
- Storage: When not in use, coil the hose neatly and store it in a cool, dry place away from direct sunlight, sharp objects, and extreme temperatures. Proper coiling helps prevent kinks and extends hose life.

Image: The JACO FlexPro Hybrid Air Hose, coiled neatly on a wooden surface, showcasing its storm gray color and dual 1/4" M-NPT fittings with bend restrictors.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Air Leak at Connection | Loose fitting, damaged threads, missing or worn thread sealant. | Tighten fitting. Inspect threads for damage; replace if necessary. Apply new thread sealant tape. |
| Hose Kinks During Use | Improper handling, extreme bending, or hose memory from storage. | Uncoil hose fully before use. Avoid sharp bends. The FlexPro hose is designed to resist kinking, but extreme angles can still cause temporary kinks. |
| Reduced Airflow | Kink in hose, obstruction, or compressor issue. | Check hose for kinks. Disconnect and inspect hose interior for obstructions. Verify air compressor is functioning correctly. |
| Hose Damage (Cuts, Abrasions) | Contact with sharp objects, dragging over rough surfaces. | Discontinue use immediately. Replace the damaged hose. Avoid dragging the hose over abrasive surfaces. |
Warranty & Support
The JACO FlexPro Hybrid Air Hose is backed by JACO's lifetime warranty for reliable performance. For warranty claims, technical support, or any questions regarding your product, please contact JACO Superior Products directly.
Visit the official JACO Superior Products website for contact information and further details: JACO Superior Products Store