TAISHER 304 Stainless Steel Reducer Hex Nipple, 3/4″ to 3/8″ NPT Male, 2-Pack

Pack: TAISHER’s stainless steel reducer hex nipple set connects 3/4-inch NPT male threads to 3/8-inch NPT male threads. The listing describes two forged 304 stainless steel fittings and gives operating temperature and pressure claims, but customers report mixed fit and threading experiences.

At a glance

Male NPT threads on both ends, with a 3/4-inch to 3/8-inch reduction.
Hexagonal body is described as providing wrench leverage during installation.
The listing claims a protective case, but does not provide an explicit package inventory.

Price

$4.49Save 50%

Reference price: ~~$8.99~~

Price checked: Nov 12, 2026

View offer Ahead of Black FridayExplore the selection

Pros and cons

Pros

The two different nominal NPT sizes support a specific stepped connection without adding a separate reducer.
A hex body gives a wrench a surface to grip, as described in the product listing.

Technical specifications

15 specifications

Identity and connection
Brand	TAISHER
Connector type	Reducer
Connection size	3/4" NPT x 3/8" NPT
Thread size	0.75 inch
Thread type	NPT
Thread ends	3/4" NPT Male x 3/8" NPT Male

Materials and finish
Material listed	Stainless Steel
Claimed grade	304 Stainless Steel
Color	Silver
Manufacturing process	Forging

Operating claims and set
Working temperature	Temperature range from -80 to 1472 degrees F/-62 to 800 degrees c.
Maximum working pressure	Maximum working pressure is 2800PSI.
Number of pieces	2
Manufacturer part number	TE-216S
Warranty description	1-year warranty

What to know before buying

The listing gives an NPT nominal size, not the fitting’s actual outside diameter. Confirm that both ends match the connected components. Customer feedback reports mixed compatibility and threading experiences.
The listing identifies the material as stainless steel in its details and claims 304 stainless steel in its feature text. It also claims a protective case without an explicit package inventory, so confirm the selected listing’s material grade and included case.

What’s in the box

2 reducer hex nipplesCheck selected pack
Protective caseCheck selected pack

Check which accessories are included in your selected pack before buying.

Who is it for?

A good fit for

Buyers who need a male-to-male NPT reducer from 3/4 inch to 3/8 inch.
Installations where a wrench-grippable hex fitting and stainless steel are desired, subject to checking compatibility and application requirements.

Less suited to

Connections requiring female threads or a different thread standard or nominal size.
Applications where the stated pressure or temperature limit must be independently established before use.

TAISHER 304 Stainless Steel Reducer Hex Nipple, 3/4″ to 3/8″ NPT Male, 2-Pack · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.6 / 5 · 475 ratings

5 stars80%80%
4 stars9%9%
3 stars5%5%
2 stars3%3%
1 star3%3%

Customer feedback describes the fittings as nicely machined and good value, while reports on functionality, fit, and threading are mixed. Some customers say they work well, and others report compatibility issues with 3/8-inch NPT plumbing fittings or difficulty threading. Since the listing specifies nominal NPT sizes, buyers should match the thread standard and sizes to their components rather than relying on nominal dimensions alone.

Positive themes

Customers describe the fittings as nicely machined and good value.

Mixed feedback

Feedback on fit and functionality includes both successful use and reported compatibility issues with 3/8-inch NPT plumbing fittings.
Threading feedback is mixed, including appreciation for thread protection and a report that the fitting did not thread properly.

Frequently asked questions

What thread sizes does this reducer connect?

The listing specifies 3/4-inch NPT male on one end and 3/8-inch NPT male on the other. NPT sizes are nominal, not actual outside diameters.

How many fittings are listed?

The listing states a two-piece set.

What material is it made from?

The details list stainless steel, while feature text claims 304 stainless steel. Confirm the grade in the selected listing if it matters for your application.

What pressure and temperature limits are claimed?

The listing states a maximum working pressure of 2800PSI and a temperature range from -80 to 1472 degrees F/-62 to 800 degrees c. These are listing claims, not independently verified measurements.