Our Mission
We're not just a company - we're a community. We're passionate about bringing people together through the love of outdoor cooking.
Questions? Call Us: (602) 345-1659
Get $5 Flat Rate Shipping on Any Rub or Sauce Order Over $50
The Grease Box
Couldn't load pickup availability

+Thread Adapter L for Grease Box GX-U
The +Thread Adapter L is made to connect to the Grease Box GX-U (sold separately) to compatible grills with a 1-1/4” threaded spout only. It is not intended for non-threaded grease spouts, different thread sizes, or universal-fit applications.
The +Thread Adapter L works with Lone Star Grillz models with a threaded vertical under-mount grease spout, as well as Pitts & Spitts grills with a 45-degree grease spout. Its flexible design allows for proper placement beneath the grill while creating a clean, secure, and custom-looking grease management setup.
Made from durable 18-gauge steel with a high-temperature-rated powder coat finish, the +Thread Adapter L is built for long-lasting performance and dependable outdoor use.
Key Features
Custom fit for compatible Lone Star Grillz and Pitts & Spitts grill models
Designed specifically for 1-1/4” threaded grease spouts
Not compatible with non-threaded spouts or other thread sizes
Works with the Grease Box GX-U (sold separately)
Flexible design allows for ideal placement below the grill
Made from 18-gauge steel for strength and durability
High-temperature-rated powder coat finish
Helps replace the standard open grease bucket with a cleaner, safer setup
Installation Options
The Grease Box GX-U can be installed with the +Thread Adapter L in two ways:
Direct Connection
The +Thread Adapter L connects directly to the Lone Star Grillz 1-1/4” threaded grease spout without a shut-off ball valve, creating a clean fit against the grill apron.
Connection with Shut-Off Ball Valve
The +Thread Adapter L can also be used with a size-specific shut-off ball valve and close-threaded pipe to fit within the grill cart. For Pitts & Spitts angled spouts, the +Hardware P&S kit is required and sold separately.
Important Fitment Notes
This adapter is designed to fit 1-1/4” threaded grease spouts only. Please verify your grill’s grease spout size and thread type before purchasing.
Due to variations in shut-off ball valves, the Grease Box may not work with every shut-off valve. A properly sized ball valve may be purchased separately if needed.
For Pitts & Spitts grills, the +Hardware P&S kit is required and sold separately.
The Grease Box GX-U attaches to the +Thread Adapter L using the provided hardware and includes a threaded close nipple for connection to compatible shut-off valves.
Benefits of Adding the Grease Box GX-U with +Thread Adapter L
Provides a safer grease containment solution around kids and pets
Includes a top cover plate to help keep out rain, critters, and outdoor elements
Replaces the standard open grease bucket with a stronger 18-gauge steel grease box
Added lock helps prevent spills and improves safety
Creates a sleek, custom-fitted look that blends in with the grill
Helps reduce the mess and appearance of a hanging grease bucket
Cleaning & Maintenance
Clean the Grease Box after each use. For best results, apply a protectant lubricant as needed to help maintain cleanliness, proper function, and rust prevention.
Compatibility Notice
The Grease Box is compatible with the El Fuego model, but modification to the firebox handle may be required for easier removal.
The Grease Box is not compatible with Lone Star Grillz models that have less than 16.5” of clearance from the grill belly to the bottom rack.
Please verify fitment before purchasing. Customers are responsible for return shipping on orders placed for non-compatible grills.
Additional Notes
Shut-off valves and threaded extension pipes are third-party products and do not carry a warranty. Teflon tape is recommended as needed during installation.
For international customers, duties and taxes are not included in the purchase price and are the responsibility of the customer.
Warning
California Proposition 65 Warning: Lead — Cancer and Reproductive Harm. Visit www.P65Warnings.ca.gov for more information.
We're not just a company - we're a community. We're passionate about bringing people together through the love of outdoor cooking.