Not Sure What Axelson Relay You Have?
Please see the picture above that will help you to identify what you have installed.
Not sure which relay you need?
Both relays do the same thing so it’s a matter of preference.
The CRBBM is considered the Cadillac of the Axelson brand relay and is often specified in many projects. This relay also has vent holes if you need to collect the gas instead of letting go to the atmosphere. You can purchase a collector that fits on the relay to collect gas. Optional Exhaust Collector Ring.