Hello abcd,
Thank you for reaching out. We appreciate you letting us know your inquiry if this refrigerator comes with all the parts to install it, specifically the waterline install kit and a filter. We understand how important this information is for you, and we're here to help.
Per checking, water line installation kits are available at extra cost from your retailer, but this refrigerator comes with a filter.
You may check pages 32-33 of the user manual for information about installing the water supply line to the refrigerator for future reference.
https://downloadcenter.samsung.com/content/UM/202101/20210114185852082/FDR_RF6000T_DA68-04012A-02_EN-MES-CFR.pdf
Do not hesitate to reach out to us via our Support Channels below should you wish to speak with a live representative.
1. Facebook Messenger: http://m.me/samsungsupport
2. Twitter: https://twitter.com/messages/compose?recipient_id=18768513
3. Samsung Community: https://us.commuity.samsung.com/t5/Samsung-Community/ct-p/us
Thank you, and stay safe!
Your Reference Ticket Number: 1144550629
-Angelica