Since you are entering SNP, a hard bear resistant canister is required.
Head over to their website for a current list of what is approved for use.
Not exactly.
From that website:
"Food Storage Options
"Food Storage Containers
"Containers are REQUIRED in three areas throughout the wilderness from the Friday of Memorial Day through October 31. These areas include: Dusy Basin/Palisades Basin, Rae Lakes Loop and the Rock Creek drainage. Inyo National Forest also requires containers in other areas.
"Containers are HIGHLY RECOMMENDED in all other areas throughout Sequoia and Kings Canyon National Parks."
