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 Reducing Coupling Brass 3/8 in Female NPT 10 pack

SKU CH-7FPM-J9043

A pack of ten brass reducing couplings with 3/8 inch and 1/4 inch female NPT threads, rated for class 150

  • TypeOther
  • Connects different pipe sizes with 3/8 in and 1/4 in Female NPT threads
  • Brass construction rated for Class 150 pressure service
  • Ten couplings per pack for multiple installation points
  • NPT 18 threads on both ends ensure compatible connections
  • California Proposition 65 warning for chemical exposure awareness

Reducing Coupling 10 Pack

This brass reducing coupling connects a 3/8 inch female NPT thread to a 1/4 inch female NPT thread. It is rated for Class 150 service and comes in a package of ten pieces. The fittings suit plumbing repairs and new installations that require a step-down in pipe size.

Brass Class 150 Fitting Integration

Each coupling accepts standard NPT threads on both ends so it threads directly onto matched pipe or nipples without adapters. The brass construction resists corrosion in water supply lines and allows disassembly for future maintenance. Ten pieces provide enough stock for multiple connection points in a single project.

Sustained Pressure Performance

The Class 150 rating indicates the fitting is designed for continuous operation at its rated pressure rather than brief test spikes. Brass material maintains thread integrity over repeated heating and cooling cycles. California Proposition 65 warnings apply because the alloy contains listed chemicals.

Highlights

  • Connects different pipe sizes with 3/8 in and 1/4 in Female NPT threads
  • Brass construction rated for Class 150 pressure service
  • Ten couplings per pack for multiple installation points
  • NPT 18 threads on both ends ensure compatible connections
  • California Proposition 65 warning for chemical exposure awareness

Specifications

BrandVALUE BRAND
TypeOther

Questions about this item

What pressure class limits sustained use of these brass reducing couplings?

Each coupling is rated Class 150, so that pressure class is the first limit you reach under continuous service.

How much heat or noise do the couplings generate during all-day operation?

Brass fittings have no moving parts and produce no heat or noise of their own; only the fluid temperature and flow noise in the piping system apply.

Which pipe threads must I already have to install the 10-pack?

You need one 3/8 in Female NPT 18 thread and one 1/4 in Female NPT 18 thread per coupling to make the connection.

Also in this aisle

People compared these

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