This trap elbow is for washing machine drainage and is compatible with hose diameters of 31, 32, and 37mm. I purchased this but it has only been stored at home and is new and unused. The price includes shipping. - Model Name: PH5543F - Compatible Hose Diameter: 31, 32, 37mm - Inner Diameter: 33.3mm - Manufacturer: SANEI - Application: Washing machine drainage ● Stored at home. ● Shipping will be the cheapest available option. ● Recycled packaging may be used. ● Please consider purchasing only if you understand that this is a used item. Thank you for looking.