(?) "Complete" fixtures include both the Trim Kit and the required Rough-in Valve necessary for installation. The valve is the part that installs in your deck or wall and connects to the hot and cold water lines in your home. A "Trim Kit" is great if you already have the valve and just need the part you see (the trim).
Disclaimer and Disclosure: FaucetList.com receives a referral fee from Amazon when you click over to their website from ours. As an Amazon Associate FaucetList.com earns from qualifying purchases. Thanks for your support.