Tri-County Truck Tops,
Serving All Of Ventura County.

Check out our great selection of Tonneau Covers!

At Tri County, we carry a number of popular LEER Tonneau Covers. From the 550 (shown) to a couple versions of the Ricochet, LEER is know for their high quality functionality and superb styling. We’ll help you choose the LEER Tonneau Cover that fits your vehicle and your lifestyle.

Learn more about ALL the LEERĀ Tonneau Covers we offer.

Introducing the all-new BAKFlip MX4

Featuring heavy-duty aluminum matte finish panels that offer superior UV and scratch resistance, and an enhanced premium density foam core. The MX4 is the upgrade to the G2 aluminum series, equipped with upgraded latch housing components, and an all-new integrated tailgate seal that allows the tailgate to close with the cover up or down.

Undercover Flex

This hard folding tonneau cover gives you the ultimate control of your truck bed, offering three secure riding positions. The cover is easy to remove, requires no drill to install, and is mounted flush with your trucks bed rails making it the most water-tight hard folding cover on the market.

Undercover Flex is backed by a 3 year warranty, slowly making it Americas favorite hard folding tonneau cover.

BedLocker – Pace Edwards’ Innovative Electric Retractable Tonneau Cover.

Its flush mounted clamp-in design and textured black finish offers tremendous strength, security, durability and style. Operated via remote control, BedLocker opens and closes at the touch of a button in less than 30 seconds and can be stopped at any point.


The newly redesigned RETRAX roll top pickup truck bed covers are unique because they are “flat from front to back,” which allows water to flow off quickly without obstruction. This patented – one-piece (polycarbonate) – low-profile design is engineered tough and streamlines the overall appearance of the pickup truck bed covers.

The RETRAX hi-tech design has set a new standard for the retractable roll top pickup truck bed covers industry; when you purchase a RETRAX pickup truck bed cover, you are buying the very best for your pickup truck bed!

The Most Advanced Retractable Bed Cover Available.

Welcome to ROLL-N-LOCK, home of the world’s finest quality retractable hard tonneau cover. Explore inside to find the ultimate in convenience, security, utility, and overall appearance for the bed of your truck. ROLL-N-LOCK tonneau covers are USA made from the finest materials available, with patented features that are not found on any other tonneau cover anywhere. Check them out for yourself!

Fast & Friendly Service!
Have Us Install Your Tonneau!

Tricounty Rhino Linings

Visit us in Oxnard or call us today at 805-650-5999 so that we can get to work!