One pair of Stainless Steel washer hoses with space-saving gooseneck end fittings. They are 6 feet long each. If you installed a Dryerbox receptacle to be able to move both appliances back against the wall, then in most cases you will need these gooseneck end fitting washer hoses.
Each year in-home flooding causes damages exceeding $170,000,000. A single washing machine flood costs between $6k and $18k for repairs.