I called unifilter and they gave me two different part #s. Both of witch are not the up-6229ast. The two they gave me are, un-8703st that is 2.25 inches and un-8709st  that is 2.5 inches. I have a 2018 zforce 800. Anybody have an idea of witch one is right?

[2015 Z Force 800 53/Trail EPS]

I called unifilter and they gave me two different part #s. Both of witch are not the up-6229ast. The two they gave me are, un-8703st that is 2.25 inches and un-8709st  that is 2.5 inches. I have a 2018 zforce 800. Anybody have an idea of witch one is right?

We all run the up-6229-st or ast. Just get the "st". The tube is 2.25".

Then that's the one I will get. Is the one with the 45 bend better to use?

[2015 Z Force 800 53/Trail EPS]

Then that's the one I will get. Is the one with the 45 bend better to use?

It's not a 45, its a 17 degree and it just puts it a little lower in the box so we just say it will work..although years ago we started out using it exclusively. The straight one mimics the stock one so just use it.Also remember that the tub's lip needs to be wither removed or flipped around for the Uni to clamp down right. This lip:

Got it. Thanks for the help. I'm sure I'll have more questions as I learn more about this machine.