Built with a durable aluminum housing

suitable for HVAC control circuits and pump automation

also identified as part 18K7101

Can this valve be used for R407C systems

Is this kit compatible with 1" or 3/4" Apollo valves

Dwyer Instruments A-331 Filter Vent Plug 321894-706 Built with a durable aluminumThe Dwyer Instruments A 331 is a professional grade 1 8" NPT filter vent plug engineered to protect sensitive pneumatic equipment from intake contaminants. Constructed with a durable nylon body and a sintered metal filter, this component is essential for maintaining the integrity of differential pressure gauges, such as the Magnehelic and Capsuhelic series, in high dust or industrial environments. The porous sintered metal element provides excellent