this gauge will provide accurate readings regardless of the transmitter brand

the 420-660# rating is specifically calibrated for the operating pressures of R-410A refrigerant applications

preventing the burner melting issues often seen in neglected high-temperature hydronic systems

or a complete lack of response to control pressure signals

Johnson Controls STT14A-601R Monel Kit 30067439-890 this gauge will provide accurateWhen handling maritime or corrosive water environments, the Johnson Controls STT14A 601R Monel Kit is the essential service solution for maintaining 3 8 inch V46B and V46C series water regulating valves. As a veteran technician knows, standard commercial kits won't hold up against salt water or aggressive fluids; this maritime repair kit features high grade Monel components to prevent the pitting and "wire drawing" that lead to valve bypass and head