Measures 1" width x 1.125" height and fills a height gap from .488" to 1" from the sidewalls to the front rail, when mounting a truck cap or camper shell.
If the height of the gap is .250" or less, just install one Extruded Solutions (ESI) high quality EPDM rubber truck cap seal on all 3 rails (see product description for choices)
No need to replace this seal every time your cap is removed.
If the height of the gap is .251" to .487" install Front Rail Seal (ASIN: B00C0WVV72)
1. Utilizes premium 3M 4011 acrylic foam tape for superior adherence.
2. Sticks securely with high-quality 3M 4011 acrylic foam tape.
3. Ensures strong adhesion through the use of 3M 4011 acrylic foam tape.