Description
The 603400700 is the gold standard in compact, universal combustion air systems—designed to optimize combustion efficiency in tight mechanical, boiler, and furnace rooms. Compatible with oil, natural gas, or LPG applications, this versatile unit succeeds legacy models like the CAS‑3 and CAS‑4.
Features:
- SAVES TIME: Designed for use in a confined space
- EFFICIENT: Delivers combustion air for mechanical rooms, boiler rooms, or furnaces
- OPERATION: For use with oil or gas applications










