Concrete Well Tile 
 
36" Inside Diameter / 42" Outside Diameter
Lid with 20" Plastic Polylok Access
Half Tile - 15" high   
Full Tile  - 30" high  
 
48" Inside Diameter / 54" Outside Diameter
Lid with 20" Plastic Polylok Access
Full Tile - 48" high 
 
24" Inside Diameter / 30" Outside Diameter cistern risers
Lid 24" Solid 
Lid 24" with 6" Fill Stack 
Half Tile - 15" high
Full Tile - 30" high
 
Dug well: The primary use of concrete well tiles is to make a dug well, instead of an artesian well. Well tiles are stacked on top of each other to build a dug well.