The information for this product is wrong and I am getting returns because of it.  This is listed as an amerex 809 bracket, the 809 bracket only fits 5" shells, this stated it fits 81/4" shells. SO we need to change description to the following:  "Fire Extinguisher Bracket, Bracket Type Box Type, Capacity 10 pound extinguisher Cylinder Dia. 5"., Metal Retention Strap, Extinguisher Type Dry Chemical, Material Steel, Color Black, For Use With 1123, 175840 Fire Extinguisher Brackets Easy to mount."  Then the Bullet point to "Fits 5" dia. Shell"  If you look at your other product pages that are Amerex 809 brackets you will see the correct dimensions.