Apply to be a TradeMaster!
Main product image of 3/4" Black Union
Magnifying glass
Hover image to zoom
3/4" Black Union
Magnifying glass
Hover image to zoom
FBUN3/4 has been discontinued
Discontinued June 3, 2026
This product was discontinued by the manufacturer.

Product Highlights

Product Highlight: Size
3/4"
Product Highlight: Material
Iron
Product Highlight: Connection Type
Threaded Connection
Product Highlight: Thread Type
Female Thread Type

Description

Please Note: Ward Black Domestic Fittings are now sold under the Anvil brand. Anvil's parent company, ASC Engineered Solutions, has acquired Ward.

Black Union

Specs

Size:

3/4"

Material:

Iron

Thread Type:

Female

Connection Type:

Threaded

Contact

Help Face
CALL US
Question? Call or text 888-757-4774
+
Help Face

Questions?

Speak with a real person who will go out of the way to help!
Call or text 888-757-4774
MondayThursday
8am7:45pm
Friday
9am7:45pm
SaturdaySunday
9am5:45pm


Compare Similar Products

Brand
Size
Material
Thread Type
Connection Type
CURRENT ITEM
Product Image of 3/4" Black Union
3/4" Black Union
SKU: FBUN3/4
(23)
3/4"
Iron
Female
Threaded
3/4" Black Union
SKU: BLU075C
3/4"
Malleable Iron
Female
Threaded

You May Also Need

3/4" Gas Ball Valve
SKU: GBV075
Bluefin

Product Reviews

4.87 out of 23 reviews
100% would recommend this product
4.87
out of 23 Reviews
100% would recommend this product
WRITE A REVIEW
5 star
91%
4 star
4%
3 star
4%
2 star
0%
1 star
0%
WRITE A REVIEW
Customer Images

Most Liked Positive Review

Top pick for unions hands down

Unions are somewhat delicate, yet important parts of any piping system. I've used all brands, but save yourself the hassle of replacing when the casting fails or the brass facing depletes after a few uses and buy one of these domestic fittings. Quality cannot be matched and price is below what the box stores sell bottom of the line unions for. There is no way even in a pinch I will install anything but one of these guys in any future application. Thanks again Supplyhouse!
VS

Most Liked Negative Review

Not a quite what I expected

I had bought Ward unions previously and the quality was much better than other imports. The male ball connector end had more material on it. This is a standard fitting like other imported unions. I expected a Ward fitting to be designed to higher standards.
Showing 1-10 of 23 reviews

Unions worked as desired.

Installed two 2" unions on steam boiler take-off risers. Work as intended, with no leaks.
Ryan H.
Glen Rock, NJ
21 days ago
Verified Buyer Icon
Verified Buyer
Was this review helpful to you?

I only use Ward fittings

Quality of a fitting makes a job go much smoother. Leaks on gas or boiler fittings are more expensive to repair than getting a quality product to start with.
Plumber Jim
New Hampshire
11 months ago
Verified Buyer Icon
Verified Buyer
Was this review helpful to you?

Just what I needed

Quality looks great. Clean threads.
Charlie
Ithaca, NY
1 years ago
Verified Buyer Icon
Verified Buyer
Was this review helpful to you?

I I would buy this product again

Great, American made product!!!!
Rob
Milwaukee, Wisconsin
2 years ago
Verified Buyer Icon
Verified Buyer
Was this review helpful to you?

Everyone should buy from you

I love your company Shipping is fast your prices are reasonable Your website is easy to work with i enjoy reading and seeing the info on all your employees keep up the great work!!
Bill
Independence Ohio (Cleveland Suburb)
3 years ago
Verified Buyer Icon
Verified Buyer
Was this review helpful to you?

A+++

Purchased to run a propane line from outside tank to heater in garage. Great selection. good quality, and really quick delivery. Would highly recommend.
Joe
Pennsylvania
4 years ago
Verified Buyer Icon
Verified Buyer
Was this review helpful to you?

Quick shipping

Products are all as describe. Perfect shape and accurate count.
Gassy man Jeff
PA
4 years ago
Verified Buyer Icon
Verified Buyer
Was this review helpful to you?

I will buy this item again.

The unions arrived quickly, in great condition at a very fair price
Tim dry cleaning mechanic
Austin,TX
4 years ago
Verified Buyer Icon
Verified Buyer
Was this review helpful to you?

Good quality USA-made fitting

SupplyHouse is my go-to supplier for plumbing supplies. They provide top quality product at a competitive price with free shipping at a relatively low total-order threshold. Their shipping is exceptionally fast, and customer service is exceptionally good.
ProfessionalEngineer
DeTour, Michgian
5 years ago
Verified Buyer Icon
Verified Buyer
Was this review helpful to you?

Black iron pipe fittings

Used for conveying low pressure hot liquids
Blizz
Oregon
5 years ago
Verified Buyer Icon
Verified Buyer
Was this review helpful to you?

Product Q&A

1 Question
1 Question
ASK A QUESTION

Q: Should one, when installing this Black Union, in a natural gas line install use a lubricant like motor oil between the mating faces of the union?

Asked by Kurt 8 years ago

Add your answer

* Required Field
Verified Author and ReplyVerified Reply- Supplyhouse Staff

The use of thread sealant is recommended when installing this product such as pipe dope or Teflon tape

Was this review helpful to you?