We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in

Value Brand

Value Brand 1-1/2" x 1-1/4" FNPT Brass Coupling

SKU CH-QWD3-EG0V0

A brass coupling joining 1-1/2" and 1-1/4" female NPT threads, rated for 200 psi

  • Connects 1-1/2" and 1-1/4" FNPT pipes
  • Brass construction resists corrosion in plumbing systems
  • Rated for 200 psi maximum operating pressure
  • Female NPT threads on both ends ensure secure fit
  • California Prop 65 warning applies to this product

Brass Coupling for Female NPT Pipe Connections

This brass coupling joins a 1-1/2 inch female NPT thread to a 1-1/4 inch female NPT thread. It suits plumbing installers and maintenance crews who need to transition between these two pipe sizes in water, air or inert gas lines. The fitting is rated for 200 psi maximum operating pressure. It is supplied new and carries California Proposition 65 warnings for cancer and reproductive harm.

Threaded Fitting That Requires Male NPT Counterparts

Each end accepts a male NPT pipe nipple, adapter or component, so the installer must provide matching male threads and suitable thread sealant. The coupling itself adds no moving parts and frees the assembler from sourcing a custom reducer. No special tools beyond standard pipe wrenches are needed to make the joint.

Solid Brass Body Holds Pressure Continuously

The all brass construction resists corrosion and maintains its 200 psi rating under sustained system pressure without the creep seen in plastic alternatives. Thread engagement distributes mechanical load evenly across the joint during long term service. The fitting contains no seals or elastomers that can degrade over time.

Highlights

  • Connects 1-1/2" and 1-1/4" FNPT pipes
  • Brass construction resists corrosion in plumbing systems
  • Rated for 200 psi maximum operating pressure
  • Female NPT threads on both ends ensure secure fit
  • California Prop 65 warning applies to this product

Specifications

BrandZoro Select

Questions about this item

Will the 200 psi maximum operating pressure limit flow before the brass threads wear?

The 200 psi maximum operating pressure is the first limit reached under sustained use; brass threads typically outlast the pressure rating when installed correctly.

Does the brass coupling generate noticeable heat or noise when pressurised continuously?

Brass conducts heat well, so the body stays near fluid temperature and produces no audible noise under steady pressure.

Which mating fittings must I already have to connect this 1-1/2" FNPT to 1-1/4" FNPT coupling?

You need a 1-1/2" MNPT fitting on one side and a 1-1/4" MNPT fitting on the other, plus thread sealant rated for 200 psi service.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.