Is Bleach episode 317 filler?
Filler Yes, episode 317 of Bleach is filler.
#317
Unusual Incident in Seireitei?! Gotei 13 Invading Army Arc!
瀞霊廷に異変？！護廷十三隊侵軍篇！
Aired 12 Apr 2011
Mochibayo compiled this list from MyAnimeList's labels, because MyAnimeList's episode data is not reaching us at the moment.