Transfer Flow's 50-gallon fuel tank fits under your tonneau cover

Transfer Flow Low Profile Under Tonneau Auxiliary Fuel Tank — Tank Retailer

Transfer Flow introduces in-bed auxiliary fuel tank system for full-size trucks

AM-Tank Low Profile 58 Pick Up Diesel Tank-Fits UNDER Tonneau Covers –

Transfer Flow, Inc. - Aftermarket Fuel Tank Systems - User Search Results

Transfer Flow, Inc. - Aftermarket Fuel Tank Systems - 40 Gallon Refueling Tank System - Gas, Diesel, Kerosene

AT78WX, 52% OFF

Aluminum Under Bed Cover Auxiliary Tanks.

Transfer Flow Refueling Transfer Tank — Tank Retailer

ATTA 50 Gallon Diesel Auxiliary Tank & Toolbox Combo (For Tri-Fold Bed Cover)

Transfer Flow's 37 gallon Auxiliary Tank for Retractable Bed Covers

ATTA DOT Approved Under Tonneau Cover Transfer Tank — Tank Retailer