In The Burning Crusade it is item level 115, requires level 70 and sells to vendors for 4g 39s 69c. In Wrath of the Lich King it is item level 115, requires level 70 and sells to vendors for 39s 69c. In MoP Classic it is item level 115, requires level 68 and sells to vendors for 4g 75s 88c.
Read from the World of Warcraft client build files (JournalEncounterItem, JournalEncounterCreature, Achievement) and the Blizzard Game Data quest API.
How Helm of Sanctification Compares
Who It Suits
Plate is the armor type Death Knight, Paladin and Warrior wear. With Strength or Intellect, Helm of Sanctification suits Arms, Fury and Protection Warrior; Holy, Protection and Retribution Paladin; Blood, Frost and Unholy Death Knight.
Transmog Sets
Helm of Sanctification is part of the transmog set Telhamant Anchorite's Raiment (Warrior, Paladin and Death Knight only). The other 2 pieces:
Built from the World of Warcraft client build files and recorded Auction House snapshots.
Where Helm of Sanctification Fits
Other Items Named Helm of Sanctification
1 other item in the current build is also called Helm of Sanctification. Same-name entries are usually a different rank, faction, quest stage or reward track of the same object.
Blizzard numbers items as they are created, so the named items next to ID 34795 (34790 to 34800) were usually added in the same batch as Helm of Sanctification: the same quest line, zone, vendor or reward set.