Angel Juicer Wheatgrass Housing Filter is specifically designed to press wheatgrass. This filter is recommended for customers looking to juice wheatgrass on a daily basis. Wheatgrass requires a much higher pressure than other produces due to its strong fibrous pulp and fibers. Therefore, the wheatgrass housing filter has a hole on the end that is bigger than standard housing to absorb the higher pressure (see last product picture for comparison). This wheatgrass filter is available in both food-grade stainless steel (SUS-304) and surgical-grade stainless steel (SUS-316). The function and fit are identical, making both housing filters suitable for all three Angel models.