What is this metal adjustable support called?

[afjes_2016]

I need to get a support like the one in the picture but I don't know what it is called. It is next to the white upright rectancle that I placed in the image.
It is metal with plates at the top and bottom and it is height adjustable (threads at the top).

I need it for a project in my basement. I want to support the floor right below where my washing machine will be placed.

I want to buy it on Amazon. The distance from the floor to the joist is about 62 inches. I plan on placing a 4x4 cross the joists and then support the 4x4 with this pole. I probably won't need it but feel better using it.

Any help would be appreciated.

Thanks
Afjes

 

[Sparky617]

It is a lally post/column.

https://www.lowes.com/search?searchTerm=lally column

 

[afjes_2016]

Thanks for the reply. Much apprecaited!!

After looking at the prices on Amazon, HomeD and Lowes I am going to utilize a 4x4 pressure treated post instead for now. I more than likely don't need this support where the washer is going because I had a full size side-by-side fridge in the same spot and it was fine like that. I was just concerned with the shaking of the washing during spin cycle that maybe best to have a bit more support under it.

The weight per square foot of the fridge to the washer is probably about the same even with the washer filled with water (about 8 pounds per gallon). The shaking on spin cycle was all I was thinking about.

 

[Sparky617]

Front loader or top loader? Front loaders spin a lot more, but have much less water than a top loader. Though I believe the newer top loaders without an agitator don't use a lot of water either.

 

[afjes_2016]

Top loader
Very small agitator at the bottom only. I hate the large agitators. They stretch my clothes.
Whirlpool Model: WTW5000DW1

 

[Snoonyb]

Here is another; beam jacks

They are also called jack posts and are available, in a threaded adj. model.

 

[afjes_2016]

Thanks for the replies.
I think for my use I will go with the wooden 4x4 post.