Apex Roof Box - 18 Cubic Feet

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Item #: RTB-18
  • Product Description
  • Specifications

Product Overview

Compatible with most existing and aftermarket crossbars, this 18 cubic foot Apex Roof Box is designed to withstand heavy use in all weather conditions. Featuring a UV inhibitor which resists fading and cracking, this cargo box is fully sealed during travel to keep your gear safe and protected – even in rain or snow. With easy no-tool “click-n-go” installation, you’ll be on your way to your destination without compromising the interior space of your vehicle!


This rooftop cargo box provides an extra 18 cubic feet of storage and accommodates up to 110 lbs of extra gear. This carrier is designed with easy-access loading on three sides of the box for increased convenience and efficiency while packing up your vehicle. With no-tool assembly and installation, this cargo box is ready to go right out of the box! Easily attachable to both OEM and aftermarket crossbars, this carrier mounts to your roof in 10 minutes. If you’re in the market for crossbars, Discount Ramps also offers a wide selection of aftermarket crossbar systems for nearly all types of cars, trucks and SUVs!


  • No tool assembly – out of the box and onto your vehicle in 10 minutes
  • 18 cu ft. of additional storage
  • Measures 57" L x 39" W x 19.5" H
  • 110 lb weight capacity
  • Included lock for extra security
  • Compatible with OEM and aftermarket crossbars
  • Made from high-quality plastic
  • The top and bottom pieces nest together for easy storage when not in use
Brand Apex
Warranty 1 Year
Length 57"
Width 39"
Height 19-1/2"
Weight Capacity 110 lbs
Product Material Plastic
Product Weight 36 lbs

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