ATD TOOLS 1 Diameter Grease Pump Strainer ATD-5356 Metallic The ATD TOOLS ATD-5356 is a grease strainer designed for use with ATD grease pumps. This strainer helps to prevent foreign debris and contaminants from entering the pump, ensuring smooth and efficient operation. It is an essential accessory for maintaining the longevity and performance of grease pumping equipment, especially in dirty and contaminated environments.