Discontinued and limited to existing inventory, individual parts may be available.
Standard replacement handle set would be Tribeca or any other style of Andersen Handle sets

Andersen Gliding Door 2 Panel Hardware Set
For Perma-Shield and Frenchwood Sliding Patio Doors

Reachout Trim Set includes:
1997201 - Stone Colored Interior Handle
1997202 - Stone Colored Exterior Handle
2573558 - Deadlock
2573562 - Strike