This is a MK 1 Ashcan, suitable for a Firex fire.
These are available in 16" standard and deep, 18" standard and deep, 21" standard and deep and 24" standard and deep.
The dimensions of the Ashcans are below:
16" Standard: 9" height x 11" width
16" Deep: 12" height x 11" width
18" Standard: 9" height x 13" width
18" Deep: 12" height x 13" width
21" Standard: 9" height x 13" width
21" Deep: 12" height x 13" width
24" Standard: 9" height x 13" width
24" Deep: 12" heightx 13" width