Brass 2 1/2" Swivel NH to 1 1/2" Rigid NPT Double Female Female Threads_NYC The horizontal back flush is

The horizontal back flush is the preferred strainer which allows the pvc line to be back flushed

and how far you can go

NH/NST is common in the fire service

National Stock Number (NSN 4210-01-079-9283)

This is the same water-handling accessories spanner wrench found in the Defense Logistics Agency (DLA) Wildland Fire Equipment catalog or Fedmall

Brass 2 1/2" Swivel NH to 1 1/2" Rigid NPT Double Female Female Threads_NYC The horizontal back flush isFemale 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 SF25F15T 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