Designed for multi-refrigerant compatibility

and PDP series

Can I use this tee with R410A systems

System Efficiency: Minimizes pressure drops across the filtration stage

Reznor 121275 Block Designed for multi-refrigerant compatibilityThe Reznor 121275 Stack Flue Block is a high limit safety component engineered specifically as an Energy Cutout Device (ECO) for commercial and industrial gas fired heating units. Designed to monitor the integrity of the ventilation system, this blocked vent switch acts as a critical failsafe by measuring exhaust temperatures at the flue. If the sensor detects a restriction, backflow, or overheating condition where temperatures reach the 275F trip