Briggs B500025 Plastic Dual Flush Actuator. These dual flush buttons include the nut that holds them to the tank lid. The two arms are adjustable in length by twisting them. Their purpose is to allow two different volumes of flush. This button come complete and ready to install. Also the smaller button uses less water when needed. 

This button does come complete. It has the nut to secure it to the tank. Also the rubber boots in the end of the legs. Therefore it will prevent damage to the flush valve. Also the legs are able to be adjusted. However they are already set at the right height from the factory. This is part is a genuine Briggs replacement part. 

In conclusion this button fits the 4484 tank. The Briggs B500025 Dual Flush Actuator comes complete. Therefore the nut to secure it to the tank is with it. Also the rubber boots to protect the flush valve come with the actuator. The button comes in a chrome finish. Also it is plastic. The nut is also plastic. However that means it will not rust. Therefore it will last longer. 

• Genuine Briggs Replacement part
• Comes complete
• Adjustable legs
• Rubber boots
• Nut to secure it to the tank