Durevole Roof vent install kit allows you to properly mount your RV roof vent and create a waterproof seal. Kit includes 2 tube of self-leveling sealant, 2 roll of butyl tape, 52 slotted hex head stainless steel screws and 12 stainless steel screws.<br> <br> Features:Installation kit includes everything you need to mount your RV roof vent with a waterproof seal.<br> Works on surfaces such as aluminum, brass, steel, glass, mortar, wood, PVC, EPDM, TPO, and TPV. Pre-formed, synthetic polymer butyl tape remains flexible for years. Adhesion improves with age.<br> Weather-resistant, paintable sealant is self-leveling for horizontal surfaces.<br> No primer required.<br> White color.<br> <br> Kit includes:<br> 2x 10.1 oz tubes of sealant.<br> 2x 10.5' Roll of butyl tape.<br> 52x #8 x 1" slotted hex head stainless steel screws.<br> 12x #8 x 3/5" stainless steel screws.<br>