Replacing RV Slide Seals Depending how many seals you need to replace on your trailer, you'll want to give yourself about an hour per slide if you're replacing multiple sides. Supplies Needed 📏 Slide Seals- We used RecPro 3" wiper Seal with bulb. It comes in 5ft increments that you'll cut to size. It's self adhesive 📏 Tape measure- measure to get the length you'll need for replacement and to make sure you get the right size & type of seal for your set up 📏 Paint scraper/ putty knife- to remov