Review on 🚀 Enhance Fuel Flow with ZOOYL Gas Can Vent Caps Retrofit Kit - 6 Packs of Durable Stainless Steel Replacement Valves for Faster Refills and Universal Fit with Silicone Rubber Caps by Alan Pfeiffer

I will order another set. They are easy to install. A drill is included to help you get a good fit. It is screwed into the plastic. It has a rubber washer to prevent leakage. I sprayed the can with Vindex to lubricate the washer to keep it from warping when tightened. First I screwed in the vent by hand and used a screwdriver, they provided a slot to tighten it down a bit. Make sure the washer is not protruding from under the vent hole. cap works fine. I think a little care in removing it will allow it to work for a long time. This is much better than the cast-in vents that you can order or get with some replacement nozzles. It can also be reused if the glass is damaged.