Product Description Installing these durable gas can vent caps is quick and easy—even if you've never modified a gas can before. All you need is a 31/64" still bit for a 1/2" vent to create a small hole, then just press the vent into place. There’s no need for complicated tools or extra hardware. These vents are designed to fit a wide range of plastic and metal gas cans, including Blitz, Scepter, Midwest, and other common brands. Whether your can has a wide mouth, smaller vent hole, or standard 1–6 gallon capacity, these caps are built to work across various sizes and models. They're also a great solution for older cans that didn’t originally include a vent. While not universal, the snug-fitting design offers strong compatibility across most popular fuel container styles. Made from high-quality, fuel-resistant plastic, Mr. Yellow Cap vents are built to last. They’re resistant to corrosion, UV exposure, and extreme temperatures, making them a dependable choice for long-term fuel storage, even in harsh outdoor environments. They’re tough enough to handle heavy use, including emergency generator refueling, job sites, workshops, and daily tool use. These vent caps enhance fuel flow by allowing air to enter the can as fuel exits—this helps eliminate glugging, stops vacuum lock, and makes pouring faster and smoother. Whether you're topping off a generator or filling your mower, these vents ensure a spill-free, frustration-free experience. This vent caps pack includes everything you need to upgrade multiple cans. Although the vents are not paint-matched to your can, you can easily paint them if needed. For anyone tired of slow, messy pours, this vent kit is a fast, effective upgrade.