You are buying a single drain plug that fits Meyer E-46, E-47, E-57, E-58, E-60, V-66, V-68, E-78, and E-88 Snow Plow Pumps. It has an O Ring on it. Additional O Rings and Seal Kits are available here in our store. We stock every seal for all Meyer Pumps

This is a replacement drain plug for early E-47 units. Early E-47 units have two (sometimes 3) of these on the front. They remove with a 5/8" wrench or socket. Original they have the filter attached to them. These don't.