ESI Super Cap Seal XL 23 FT (2 1/8" Width x 1/2" Height x 23' Length) EPDM Rubber for Caps Over 200 lbs

Easily trims to size to fit trucks with smaller width front bed rails. NOTE: To determine if you need to use a Front Rail Seal 6ft (ASIN: B00C0WVV72) 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. If the height of the gap is .250" or less install Super Cap Seal XL only. If the height of the gap is from .251" to .487" install Front Rail Seal on the cap's front base rail and install Super Cap Seal XL 20ft (ASIN: B00NCCNUJQ) on the cap's side base rails. If the height of the gap is extra-large, from .488" to .875" install Super Cap Seal XL 20ft or 23ft on the cap's front and side base rails and install Front Rail Seal on the truck's front bed rail. OTHER QUALITY TRUCK CAP SEALS FROM EXTRUDED SOLUTIONS: "Super Cap Seal 23ft" (ASIN: B00C7VU9BA) measures 1 1/2" wide and fills all bed rail gaps, for caps that weigh 200 lbs or less. "Premium Cap Seal XL 23ft" (ASIN: B001PQR63A) measures 2" wide and fills small to medium bed rail gaps, for caps 200 lbs or less. "Ultra Cap Seal 23ft" (ASIN: B00MPMBIZW) measures 1 1/2" wide and fills all bed rail gaps, for truck caps over 200 lbs. IMPORTANT: To completely seal out dust and water install an Ultimate Tailgate Seal with Taper Seal to the tailgate gap and sidewalls (ASIN: B00IPQWXZQ). Save and buy the COMBO Pack: Super Cap Seal XL 23ft and Ultimate Tailgate Seal with Taper Seal (ASIN: B00BQZ4G3U). Made in USA