Festool 487424 is a replacement protective hood (shroud) for several legacy sander models and variants, including:
Rotex RO 150 E Series: Compatible with specific TNR variants like 487328, 487902, 487917, 489868, and 489869
Rotex RO 2 E Series: Compatible with tool variants 485837 and 487344
WET 2 E & WTS 150/7 E Series