Capital Refractories has pioneered the recent use of gas diffusers in foundries. Capital has un-beatable quality and support.
Below is a comparitive example of a Capital gas diffuser and one from our competition. This was created using two plugs with a wash of gas-leak detecting fluid and the same pressure of gas.
| Competitor's plug | Capital plug | |
| Gas is leaking between the can and the plug. Some gas through the plug but not an effective gas distribution. | Effective swarm of gas through the whole surface of the plug. | |