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 Tim Duncan

This is an amazing system. The vent holes are perfect for the included drill bit. The rubber seal is tight, I do not flow and do not flow. I wish I had known about these wonderful little things a long time ago. As for the EPA's new "safe" gas canisters that require a third hand to fill, get these vents, a set of spare nozzles and screw caps, and turn that impossible fuel can into a working one! Fantastic invention!