This is the RDS 48 Gallon L-Shape Refueling/Auxiliary Tank. These aluminum tanks are designed for transferring diesel fuel from the bed of a pickup to
RDS Transfer Fuel Tanks
Under Tonneau Cover Fuel Tanks — Tank Retailer
RDS MFG INC 11025 Diesel Install Kit : Automotive
RDS 48 Gallon L Shaped Transfer Tank Bright Aluminum 24X32X26 Model # — Elite Truck
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L Tank Empire Truck Works LLC, 46% OFF
Rds Transfer Fuel Tank
Transfer Flow 75 Gallon In-Bed Auxiliary Diesel Fuel Tank System - TRA — Elite Truck
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RDS 48 Gallon L Shaped Transfer Tank Bright Aluminum 24X32X26 Model # — Elite Truck