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Your cart is empty.To determine if you need a Front Rail Seal measure the difference in height from the truck's side bed rails (including, if any, bed rail caps) to the truck's front bed rail. For the cap's side base rails (when using a Front Rail Seal) install one of ESI's high quality 20ft truck cap seals (see choices below). To seal the cap's front and side base rails (not using a Front Rail Seal) install one of the following 20ft or 23ft length truck cap seals: 1 1/2" wide Super Cap Seal 23ft (ASIN: B00C7VU9BA) or Super Cap Seal 20ft (ASIN: B00NCC0SY6) fills all bed rail gaps, use on truck caps that weigh 200 lbs or less. 2" wide Premium Cap Seal XL 23ft (ASIN: B00IPQR63A) or Premium Cap Seal XL 20ft (ASIN: B00NCCX6C2) fills small to medium bed rail gaps, use on truck caps that weigh 200 lbs or less. 2 1/8" wide Super Cap Seal XL 23ft (ASIN: B00BNGBXOC) or Super Cap Seal XL 20ft (ASIN: B00NCCNUJQ) for trucks with extra wide bed rails, fills all bed rail gaps and for caps over 200 lbs. 1 1/2" wide Ultra Cap Seal 23ft (ASIN: B00MPMBIZW) or Ultra Cap Seal 20ft (ASIN: B00NCCDXJ8) fills all bed rail gaps, for caps over 200 lbs. IMPORTANT: To completely seal out dust and water that enter in through the tailgate gap and sidewalls, install a patented Ultimate Tailgate Seal with Taper Seal (ASIN: B00IPQWXZQ). MADE IN USA
Chris Jett
September 4, 2025
I was not pleased with the cheap front rail seal that came with my expensive tonneau cover. I bought this and it is so much better and seals so much better.
Steve
August 24, 2025
I was having water leak in under my tonneau cover from the front. It's just what was needed and works great.
rockman
August 22, 2025
I ended up not using this seal but only because my other seal fit all the way around. But having it in my hand, this is a very quality seal and I would have no question that it would keep out the elements.
Faro
July 30, 2025
Great quality. It's much better the one comes with Tonneau-Cover. And the bonus It's included 3M promoter which enhance the bonding.
DH
July 16, 2025
Better than the flimsy one that came with my BakFlip bed cover.
Brian
June 30, 2025
Bought this to seal my tonneau cover to the bed of my pickup truck. The adhesive strip that came with the rubber strip is garbage, came off after a week. I would definitely not recommend this product, not worth it.
George Walsh
June 8, 2025
Appears to be good quality, but much too thick for the front bed rail to use with my Extang tonneau cover. I also would question the durability of the adhesive as it pulled off pretty easily once I discovered it didn’t fit. Maybe with longer to cure it would adhear better.
Bernd Dunemann
June 6, 2025
Greatly appreciated the alcohol swab to prep the area in addition to the adhesive packet, which is a must to ensure anything sticks to spray-in bed liner.
Ed
May 11, 2025
Right length, right thickness and right width.
Chris
March 11, 2025
Good quality items
Customer
March 5, 2025
This is a great seal for sealing the front rail of my topper. As a suggestion it would be better if it was wider. For my 2011 it would have been better to order 2 to get the width.
P. N.
February 24, 2025
Very easy to install, will see how long adhesive lasts
Kenny g
January 30, 2025
This is probably a good product but it didn't compress enough for my application, make sure you need the full thickness of this product
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