These Threaded Seals ONLY fit the EarthMinded RainStation Rain Barrel!
The EarthMinded / EarthMark RainStation was fabricated with metric size holes in the barrel. This IS the replacement threaded seal you need for your EarthMinded RainStation rain barrel.
The Threaded Seal is located on the barrel at position #3 and #4 in the drawing below. The drain fittings screw into the threads of the rubber seal. As the part is screwed in it expands to assist with making a water tight seal.