This is the window slider kit for Artica, Gelo and Apollo MK2 Portable Air Conditioning. 

The pack contains

Window Kit:
Window Panels
1) Window Panel - back plate x1 (WK-100003)
2) Extension Panel x1 (WK-100002)
3) Adjustment Panel x1 (WK-100001)
4) Rain Shield x1 (WK-100000)
5) Screw  x 8 (HOSA-100003)