Question related to loot filters

Is DropLevel the same thing as the level requirement to equip a (white) base item?

While what Gary says is true, DropLevel is the level at which the item can drop.

For example Unset Ring can only drop from level 45 and up, but not below. As far as I know it is equal to the "Required level" in some situations, but not in all of them. So Drop, Item and Required are three separate things.

Yes, I'm asking about DropLevel, not ItemLevel. Many filters are using this stat to filter out low level bases even if they are of high item level, and I'm not sure where to get this stat from.

Here: https://www.pathofexile.com/item-data

If you have a look at the weapons, armour or jewelry on that page, you will find a colum named "Level". That's the DropLevel.

Ok so it's the same as the level requirement diplayed on white items, thanks.

No it's not. As I said the three are separate things.

As an example, look at a Moonstone Ring. It has a DropLevel of 25, but requires level 20 to be worn.

/edit: Actually that could have changed. I'm not at a Windows PC right now to verify. poedb.tw (which is datamined afaik) shows a different value than the wiki.

You're right, jewellry seems to be an exception. I see Unset Ring with level req of 5 and Moonstone with level req of 20 in game. But for armor and weapons they appear to be the same values.

One more thing: I believe uniques can have different DropLevels as well. E.g. Headhunter and Wurm's Molt have different Droplevels, even though both are Leather Belts.

That doesn't concern me atm since there's very little reason to filter uniques out or to highlight them via DropLevel instead of their rarity tier but yeah that's a thing as well. Thanks.