The manufacturer is not equip with the main hose for replacement.
Established in 2008, we AQUATOWN is a professional designer and manufacturer in bidets. Our major products are Bidet attachment, Handheld bidet sprayer, Portable bidet and so on. We can provide the main hose for your customers to replace the old one. There is not all customers need the new main hose. If each bidet included the main hose, the cost will increase a lot. So we recommend you to prepare some main hose separately in case of your customers need it.