Advanced EK Series is the ultimate Slide Out Seal System. Can be used for new installations or when upgrading worn out rubber seals. Order in Taiwano parts. The EK Seal Base comes with wiper and is designed with straight edge for easy alignment with adhesive backing. Fasteners may be used to install as well. D Seal, purchased separately, easily slides onto track in base, hides fasteners and provides a positive seal. EK Seal Base may also be used on interior wall for protection when Slide Out Room is extended or when replacing a double seal. Dimensions: 1/2" x 1-3/4" x 35'