What is the difference between the "B" suffix and "A" suffix cages

The MARS 93014 is a professional-grade small oval capacitor bracket engineered for securing motor run capacitors in high-vibration HVAC environments

Machined from high-tensile C360 and C370 brass at JBÆs Aurora

Compact Bronze Construction: Robust all-bronze seat and body resist corrosion and fit tight OEM boiler clearances

replacing a worn high limit safety switch with this factory-authorized part is essential for restoring reliable furnace performance and meeting local mechanical codes

Maxitrol 325-5L-1/2-12A39 Regulator Els PW 17895 What is the difference betweenThe Maxitrol 325 5L 1 2 12A39 is a field proven line pressure gas regulator designed for 2 PSI piping systems in residential, commercial, and industrial settings. As a veteran in the field, you know the importance of positive dead end lock up; this units high leverage valve linkage ensures it. It manages a maximum individual load of 425,000 BTU hr and a total combined load of 500,000 BTU hr, making it ideal for high demand equipment. The included