Brass 2 1/2" Swivel NPSH to 2 1/2" Swivel NPSH Double Female Durability_Above Average This is the most common

This is the most common plug size in the US

style and length of layers

These will fit most rubber covered LDH firefighting grade supply hose and are the OEM couplings for Key Fire Hose Pro-Flow LDH

ASA Forged Flanges have raised shoulder with no raised face

This strainer is installed with the strainer holes facing down

Brass 2 1/2" Swivel NPSH to 2 1/2" Swivel NPSH Double Female Durability_Above Average This is the most commonFemale 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 DFP2525 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