While the sensor has 1/4" nipples for 3/8" OD tubing

This kit includes the critical NBR (Nitrile) elastomer components

How do I verify if the 3-inch insert is right for my furnace

Engineering to meet ARI-700 standards

technicians should verify the continuity of the B1370254 and inspect for obstructions in the chimney or vent pipe

Johnson Controls P100DA-35 Pressure Control While the sensor has 1/4"The Johnson Controls P100DA 35 is a heavy duty encapsulated pressure control engineered for high pressure cut out applications in commercial HVACR systems. This direct mount pressure switch features an SPST contact configuration designed to open on pressure rise at 350 PSIG. Built with open construction for versatile integration, the P100DA 35 includes a manual reset lockout mechanism, ensuring the system remains offline until a technician verifies