After searching for a large capacity, proper "Vortex" style catch can for years, we finally made our own to our specifications.
8" tall, 3" diameter, holds .25 gallons or about 1 liter. Large 1" inlet and outlets for free breathing. 1/4" NPT outlet drain.
Vortex design means incoming gasses hit round cylinder wall being forces to spin in a "vortex", centrifugal force causes oil and water particles to fling outward and drain down the walls to be collected or returned to the sump.
The outlet on the can extends down 4" inside the can to create a baffle and prevent incoming fluids to being expelled directly out of the can.
This breather can is recommended for all high performance applications to remove oil vapor from the intake tract. Pair with 1" Breather Filter to easily expel gasses out of can.
Sold in a black powdercoated finish.
Note: Vehicles running catch cans in below freezing temperatures are advised to remove the catch can during winter months to avoid freeze-up issues. Race cars that need to run catch cans in freezing conditions should take extra steps to prevent freeze-up such as an electric heater or cleaning out the system regularly. Take care when routing the lines and avoid drooping, as that can allow oil/water to collect and freeze.