Brass 2 1/2" Swivel NH to 3" NPT Double Female Female Size_2 Inch Storz couplings comes as a

Storz couplings comes as a set with one coupling for each hose end

NPSH and NPT are more common in industrial applications

Apartment buildings

Brass 2 1/2 inch NH/NST threaded smooth bore nozzle with satin finish is a straight stream only with no shut-off

Brass 2 1/2" Swivel NH to 3" NPT Double Female Female Size_2 Inch Storz couplings comes as aFemale to female adapters are used to bridge two male hose, pipe or valve fittings. Brass is commonly chosen for corrosion resistance, and is popular with chemical or salt water applications. Compatible part number SF25F30T WARNING: This product contains a chemical known to the State of California to cause birth defects or other reproductive harm. Do not use in connection with drinking water. Wash hands after handling. Brass Female to Female Adapter