Pinnacle tanks have been engineered to meet IAPMO standards for structural strength. The lids are cast onto the tank bodies making a strong, seamless tank which is watertight. Pinnacle grease interceptors and clarifiers are cast in sizes from 750 gallons to 3000 gallon single tanks.
Combinations are available for even larger assemblies. Pinnacle tank assemblies are standard H20 rated and are water tested before shipping.