Introduction
This manual provides instructions for the safe and proper use of the Onward GrillPro 80004 4-Foot LP Hose Adapter. This product is designed to connect LP (liquid propane) appliances to a 20-lb. propane tank. It features a Type 1 adapter for secure connection. Please read all instructions carefully before installation and operation.
Safety Information
WARNING: Failure to follow these instructions could result in fire, explosion, or carbon monoxide poisoning, which could cause property damage, personal injury, or death.
- Always perform a leak test after connecting the hose and before operating any appliance. Use a soapy water solution; never use an open flame.
- Ensure all connections are tight and secure.
- Do not use this hose if it appears damaged, frayed, or kinked. Inspect regularly for wear.
- Keep the hose away from hot surfaces and sharp edges.
- Use only with LP gas. Do not use with natural gas or any other fuel.
- Ensure adequate ventilation when using LP appliances.
- Store propane tanks outdoors in a well-ventilated area, away from ignition sources.
- This adapter is designed for 20-lb. LP tanks. For 1-lb. tanks, a separate forward-facing propane tank adapter (not included) is required.
Product Overview
The GrillPro 80004 is a 4-foot hose designed for connecting LP appliances to a propane tank. It features a Type 1 adapter for the tank connection and a standard fitting for the appliance.

Image 1: The Onward GrillPro 80004 4-foot LP hose adapter. One end features a black Type 1 connector for a propane tank, and the other end has a brass fitting for an LP appliance.
Setup and Connection
Follow these steps to safely connect the hose adapter:
- Ensure the propane tank valve is in the OFF position.
- Connect the Type 1 adapter (black nut) of the hose to the propane tank valve. Turn the nut clockwise until hand-tight. Do not overtighten.
- Connect the brass fitting of the hose to the LP appliance's gas inlet. Turn the fitting clockwise until hand-tight.
- Perform a leak test: Open the propane tank valve slowly. Apply a soapy water solution to all connections. If bubbles appear, close the tank valve immediately, tighten the connections, and retest. Do not use the appliance if leaks persist.

Image 2: Detail of the hose adapter's connections. The larger black nut is the Type 1 connector for the propane tank, and the smaller brass fitting connects to the LP appliance.
Operating Instructions
Once the hose is securely connected and a leak test has been performed:
- Slowly open the propane tank valve fully.
- Follow the operating instructions for your specific LP appliance to ignite it.
- When finished, turn off the appliance's gas control valve first, then close the propane tank valve completely.
Maintenance
Regular maintenance ensures safe and efficient operation:
- Inspection: Before each use, visually inspect the hose for cuts, abrasions, kinks, or any signs of damage. Check connections for tightness.
- Cleaning: Keep the hose and connectors clean and free of debris. Use a damp cloth if necessary.
- Storage: When not in use, disconnect the hose from both the tank and the appliance. Store it in a cool, dry place, away from direct sunlight and extreme temperatures.
- Replacement: If any damage is observed, or if the hose is older than 5 years, replace it with a new, approved LP hose adapter.
Troubleshooting
Refer to the table below for common issues and their solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Gas Leak Detected (bubbles during leak test) | Loose connection; damaged hose/fitting. | Close tank valve. Tighten connections. If leak persists, replace hose. |
| No gas flow to appliance | Tank valve not fully open; hose kinked; appliance issue. | Ensure tank valve is fully open. Check hose for kinks. Refer to appliance manual. |
| Hose appears damaged | Wear and tear; improper handling/storage. | Do not use. Replace immediately. |
Specifications
- Model: GrillPro 80004
- Hose Length: 4 feet
- Adapter Type: Type 1 (for 20-lb. LP tanks)
- Product Dimensions: 12 x 4.5 x 1.2 inches (packaged)
- Item Weight: 12.5 ounces
- Manufacturer: Onward
- ASIN: B000RN34AS
Warranty and Support
Specific warranty information for the Onward GrillPro 80004 is not provided in this document. For warranty details or technical support, please contact Onward customer service directly or refer to the product packaging. Always retain your proof of purchase.