The Sitz Bath by Drive is ideal for use in the treatment of hemorrhoids and other conditions in the anal and genital areas, and is especially useful after a episiotomy. The unit is designed to fit standard toilets. The Sitz Bath is lightweight, durable and easy to clean. The bag is able to hold 2.1 US quarts. The Basin Capacity for the Sitz Bath is 2 US quarts which converts to approximately 1.9L.