Polarware Heavy duty 60 quart (15 gallon) Stainless Steel Brewpot.
Comes with S/S 2 piece Ball valve and 1/2" MPT plug for Thermometer port.
On the inside of the pot where the Ball valve comes in, it is also threaded
1/2" NPT which means you could screw in a Bazooka Screen or other accessories.
Shown in the picture with optional 1/2" NPT Brew Thermometer (sold separately)
False Bottom also available.
While you are at it, you may want to get a barbed fitting for the ball valve.
Available in 3/8" Barb and 1/2" Barb depending on what size hoses you have
on your system.

I have brewed with one of these pots for many years and it still serves me well.