While the physical valve body is the same

The ASCO 8210B57 Solenoid Valve is an industrial-grade

The HH style core contains activated charcoal to adsorb wax and organic acids that standard dessicant driers cannot trap

and 0-75 PSIG

ASCO 8210G89 Solenoid Valve 30067439-890 While the physical valve bodyThe ASCO 8210G89 Solenoid Valve is a robust, high performance solution designed for reliable fluid control in demanding industrial environments. This 2 way normally closed solenoid valve features a 1 inch NPT connection and is powered by a standard 120Vac coil, making it ideal for automation in HVACR and process systems. Constructed with a durable stainless steel body and NBR seals, it provides exceptional resistance to corrosion while handling air,