We've had threads before about our hate for CARB gas can spouts. My previous solution was to buy an EZ-Pour style spout and vent set, but those run like ten bucks, so you're adding 50% to the cost of your average plastic gas can.
I just found, and I don't know if this is a new workaround ala the "assault rifle bullet button", but there are now people selling fuel cans on Amazon that come with a normal spout, but just not a vent cap, as the cap is some essential part of the EPA ban. I bought a pack of four diesel cans with this normal spout, then for $6, bought a 5 pack of vent caps. Much cheaper than than buying the full spout/vent kit. I hadn't seen this option the last time I bought a fuel can.
Anyway, FYI if you want a cheap solution. Though the EZ-Pour spouts ARE nice. You just have to ensure you buy cans threaded for the spout so you can switch it from can to can - otherwise you spend a lot of money on individual spouts.
