Dwyer Instruments A-303 Pressure Tip 321702-401 NPT conduit connection and a

NPT conduit connection and a universal coupling for 1/4" to 3/4" shafts

This comprehensive condensing boiler repair kit includes a heavy-duty cover plate

utilizing this CSA certified and ASME rated relief valve ensures system integrity and maintains HVACR equipment safety standards during routine maintenance or emergency repairs

Includes a standard 1/4" barbed connection for easy hose attachment

making it ideal for dead-end service and easier maintenance in pressurized piping systems

Dwyer Instruments A-303 Pressure Tip 321702-401 NPT conduit connection and aThe Dwyer Instruments A 303 Pressure Tip is an essential diagnostic component for HVACR professionals requiring precision static pressure measurement in ductwork and air handling systems. Engineered with a 4 inch insertion depth, this portable static pressure tip is optimized to bypass boundary layer turbulence, ensuring accurate readings from the core of the airstream. The probe features four radially drilled . 040 inch sensing holes, a design