the D4S provides a stable sampling tube interface for accurate air quality monitoring within supply and return plenums

this genuine HVAC condensate trap replacement provides the exact port alignments and internal baffling required to maintain the necessary water seal

As a veteran-grade discharge air sensor

Enhanced Durability: The galvanized steel construction offers superior structural integrity compared to plastic pans

Belimo B250+AFRX24-MFT Valve Assembly R-410A the D4S provides a stableThe Belimo B250+AFRX24 MFT Valve Assembly is a high performance 2 way characterized control valve (CCV) designed for precise flow control in hydronic systems. This 2 inch NPT valve features a stainless steel trim and a 57 Cv rating, ensuring durability against corrosive media and high differential pressures. Paired with the AFRX24 MFT spring return actuator, the assembly provides 180 in lb of torque and failsafe reliability. The Multi Function