These stainless steel brackets are fastened to the mounting surface, and clip into recesses in the sides of the toilets.
Short brackets are used with SeaLand SaniPotties with smaller 2.5 and 2.6 gallon holding tanks.
These include the 962 and 964 SaniPotties.
Tall brackets are used with SeaLand SaniPotties with the large 5.0 gallon holding tank.
These include the 965 and 966 SaniPotties