ActuallyAdditions/src/generated/resources/data/actuallyadditions/recipes/filter.json

{
  "type": "minecraft:crafting_shaped",
  "category": "misc",
  "key": {
    "I": {
      "item": "minecraft:iron_bars"
    },
    "Q": {
      "item": "actuallyadditions:black_quartz"
    }
  },
  "pattern": [
    "III",
    "IQI",
    "III"
  ],
  "result": {
    "item": "actuallyadditions:filter"
  }
}