Check the listing for details. Motorcycle Sidewall TRAILER-RV VENTS, Black, 2 inner, 2 outers, Utility, Cargo. Condition: New. Listed at 12.34 USD. 2-sets Trailer Breather Vent System 3" Cargo Camper RV ATV Motorcycle Black This listing is for (2-sets) black 3" side wall vent Made in the USA! Buy with confidenceQuality Product, Impeccable Service, @ a Competitive Price This 2- piece vent provides an inexpensive yet attractive way to ventilate your enclosed trailer. Interior and Exterior pieces are both constructed of black, UV-resistant polypropylene plastic that holds up to sun exposure. Description: Affordable trailer vent provides continuous ventilation for your enclosed trailerTo increase ventilation, you can install more than 1 vent2-Piece design creates a low-profile vent that's attractive both inside and outside your trailerRound, slotted interior piece installs inside your trailerYou can easily trim vent tube to fit thin wallsUV-resistant, polypropylene plastic construction stands up to the elementsBlack colorFits 3" diameter hole in enclosed trailerMounting screws are sold separately Sealant sold separatelyWhen installing a vent like this 2-Piece Enclosed Trailer Vent to a trailer I do recommend to use a sealant like the Loctite Urethane Sealant to help seal the trailer from the elements. The Loctite urethane sealant is applied as a thick liquid to parts before assembly or in seams after assembly to create a waterproof bond in a variety of applications. It can seal doors, windows, vents and other areas in enclosed trailers where water could enter. Shipping: All items ship USPS, please provide valid USPS mailing address. PO Boxes are okay. Feedback: Please read my feedback, My excellent customer service. Returns: We do accept returns on select items, so buy with confidence. Please read product description carefully prior to ordering. If you have any questions on the product, please send email, we're happy to help. Payment: Payments accepted through ebay managed payments. Ebay will collect sales tax if required by your state. Questions/Comments: Please email for questions or comments.