BBQ Guys has the 19.25" grates needed for the RT700.
https://www.bbqguys.com/grillgrate/...MIpc_a6YKq8gIV2HRvBB3gMAv4EAQYAyABEgIQKvD_BwE
https://www.bbqguys.com/grillgrate/...MIpc_a6YKq8gIV2HRvBB3gMAv4EAQYAyABEgIQKvD_BwE