Eco-Loop Screw-On Oil Filler: DEF Fluid Funnel with 29" Hose & No-Spill Design

Overview

The Eco-Loop Screw-On Oil Filler is a versatile pour solution designed to simplify transferring DEF fluid, motor oils, and other liquids. It threads securely onto compatible bottles, creating a controlled flow that helps reduce drips and spills while you refuel or top off containers. The result is a cleaner, more efficient workflow whether you’re at home, in the garage, or on the fleet maintenance bench.

Key to its appeal is the long reach of the hose and the thoughtful venting option. The 29-inch hose lets you pour from bottles that sit on shelves or in tight spaces, while the added vent valve speeds up pouring by equalizing pressure as the liquid moves. This venting is designed to aid flow rather than shut off or stop the pour, giving you steady control without sudden interruptions.

Noteworthy cautions help you plan ahead: the universal bottle adapter covers most fluid containers, but this filler does not currently work with VALVOLINE 5Qt. bottles. An update is in the works, so be sure to check compatibility if you’re upgrading a mixed fleet.

What makes it useful

Every use case benefits from a design that emphasizes cleanliness and reliability. The screw-on connection minimizes accidental detours and drips as you move bottles, and the long hose keeps your hands away from messy pours while still letting you reach recessed or upright containers. The combination of a universal adapter and a vented pour helps you manage liquid transfers with less mess and more confidence.

Key benefits

• Long 29-inch hose provides reach to distant or awkward bottles
• DEF fluid funnel and oil funnel functionality for multiple liquids
• Universal bottle adapter works on nearly all fluid bottles
• Vent valve speeds pouring by equalizing pressure (not a shut-off)
• Screw-on design helps secure the bottle and reduce spills
• Not compatible with VALVOLINE 5Qt bottles (update coming)

Usage ideas

• Attach to the bottle, align the funnel, and open the vent valve for a steady stream
• Pour DEF or oil with minimal splash, then detach for quick, clean storage
• Use in tight spaces where shelf-packed containers challenge a traditional funnel

What you get

A robust funnel system featuring a 29-inch hose, universal bottle adapter, and vented pour design designed for cleaner refills and easier handling.