System Compatibility: Engineered for use with single-stage gas valves in 90%+ AFUE furnace models

It is critical to match the temperature rating exactly

Key Benefits Direct OEM Replacement: Engineered to replace 755-11 models without mounting modifications

generic aftermarket alternatives

mitigating the risk of water damage and ensuring the secondary drain line functions correctly

Armstrong International B6747 Cap Els PW 17895 System Compatibility: Engineered for useThe Armstrong International B6747 Cap is a critical replacement component engineered specifically for cast iron inverted bucket steam traps. This heavy duty cap is designed for seamless integration with the Armstrong 800 Series, 811 Series, 880 Series, and 881 Series traps. As a direct equivalent to part number C3522 811, it serves as a robust pressure retaining housing component that ensures a secure seal for inverted bucket steam trap maintenance.