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
Galvanized malleable iron reducing tee with three FNPT openings

Value Brand

Value Brand 510-945BC 4" x 4" x 1" FNPT Galvanized Reducing Tee

SKU CH-2SZE-HWTGP

Galvanized malleable iron reducing tee connects 4 in, 4 in and 1 in FNPT pipes at up to 300 psi

  • Reduces flow from 4 in to 1 in with FNPT threads
  • Galvanised malleable iron resists corrosion in water systems
  • Rated 300 psi at 150 °F for high-pressure lines
  • Meets ANSI B 1.20.1 standard for threaded pipe fittings
  • Operates from -20 °F to 150 °F across seasonal extremes

Galvanized Malleable Iron Reducing Tee

This galvanized malleable iron reducing tee connects three pipe sections in a T configuration. The branch outlet is smaller than the two run outlets, allowing flow diversion or reduction. It is intended for plumbing installations that require a durable, corrosion-resistant fitting rated for water, oil, gas or saturated steam service.

Class 150 FNPT Threaded Connection Limits

The fitting uses FNPT threads to the ANSI B1.20.1 standard and carries a Class 150 pressure rating. Maximum non-shock working pressure is 300 psi at 150 °F for water, oil or gas. Saturated steam service is limited to 150 psi. The temperature range extends from -20 °F to 150 °F; operation outside this window is not supported by the rating.

4 in x 4 in x 1 in Capacity and Headroom

The 4 in run outlets handle high-volume main lines while the 1 in branch suits smaller distribution or drain lines. Within the 300 psi WOG limit the fitting provides ample headroom for typical residential and light-commercial pressures. It is not suited for systems that exceed the Class 150 pressure class or require temperatures above 150 °F.

Highlights

  • Reduces flow from 4 in to 1 in with FNPT threads
  • Galvanised malleable iron resists corrosion in water systems
  • Rated 300 psi at 150 °F for high-pressure lines
  • Meets ANSI B 1.20.1 standard for threaded pipe fittings
  • Operates from -20 °F to 150 °F across seasonal extremes

Specifications

BrandZoro Select

Questions about this item

How do I choose between the available sizes for this reducing tee?

The tee is supplied in a single 4 in x 4 in x 1 in configuration with FNPT threads, so there are no alternative sizes to select for this model.

What does the 300 psi rating mean when the tee is installed in a water or gas system?

It indicates the maximum working pressure of 300 psi at 150 °F for water, oil or gas service; saturated steam service is limited to 150 psi.

What does the FNPT connection standard cap in practice?

FNPT follows ANSI B1.20.1 taper threads, providing a seal up to the 300 psi WOG limit when assembled with proper thread sealant.

Also in this aisle

People compared these

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