Vent Systems 4" Inch Round Roof Vent Cap Galvanized Metal for All Weather Conditions Top Round Exhaust Cap with Rubber for Perfect Insulation Vent Cover - Chimney Cap 100 mm

We have a hot water tank that seems to have the gas blow out easily. We replaced a few parts on it before, but over the past 6 months or so, seems to easily blow out. Father in law mentioned the gas vent cap as a potential cause. We have the same gas vent cap on both of our water heaters, only have issues with this one, but this one is in the direct line of a lot of wind between our house and our neighbors.Installed this - fairly easy, and so far so good after that!

Exelente manera de Ventilacion de microcampana al techo al mismo tiempo evitando la lluvia y que las aves formen sus nidos que bloqueen la salida

This was a well built heavy roof cap for the gas stack. Unfortunately it did not fit my stack as I miscalculated the size and had to return it. I am sure if I had put it on, it would have lasted 25 years with absolutely no issues.

Super

The unit is galvanized, so should be weather resistant & durable. Easy to install, just slips right into 4" diameter exhaust vent pipe. I added adhesive caulk to joint for better sealing and retention. Downside: a bit expensive, but these days everything is much more expensive....sigh..