diff --git a/project/assets/configs/trader.json b/project/assets/configs/trader.json
index 64831068..2ce405a4 100644
--- a/project/assets/configs/trader.json
+++ b/project/assets/configs/trader.json
@@ -123,6 +123,10 @@
             "5671435f4bdc2d96058b4569": 0,
             "543be5cb4bdc2deb348b4568": 3
         },
+        "preventDuplicateOffersOfCategory": [
+            "543be5cb4bdc2deb348b4568",
+            "5485a8684bdc2da71d8b4567"
+        ],
         "weaponDurabilityPercentMinMax": {
             "current": {
                 "min": 40,
diff --git a/project/src/models/spt/config/ITraderConfig.ts b/project/src/models/spt/config/ITraderConfig.ts
index 71988b85..9af3fc4d 100644
--- a/project/src/models/spt/config/ITraderConfig.ts
+++ b/project/src/models/spt/config/ITraderConfig.ts
@@ -36,6 +36,8 @@ export interface FenceConfig
     /** Key: item tpl */
     itemStackSizeOverrideMinMax: Record<string, MinMax>;
     itemTypeLimits: Record<string, number>;
+    /** Prevent duplicate offers of items of specific categories by parentId*/
+    preventDuplicateOffersOfCategory: string[];
     regenerateAssortsOnRefresh: boolean;
     /** Max rouble price before item is not listed on flea */
     itemCategoryRoublePriceLimit: Record<string, number>;
diff --git a/project/src/services/FenceService.ts b/project/src/services/FenceService.ts
index 550f2503..934709ca 100644
--- a/project/src/services/FenceService.ts
+++ b/project/src/services/FenceService.ts
@@ -613,6 +613,18 @@ export class FenceService
             // rootItemBeingAdded.upd.BuyRestrictionCurrent = 0;
             // rootItemBeingAdded.upd.UnlimitedCount = false;
 
+            // Skip items already in the assort if it exists in the prevent duplicate list
+            if (
+                assorts.items.some((item) => item._tpl === rootItemBeingAdded._tpl)
+                && this.traderConfig.fence.preventDuplicateOffersOfCategory.includes(
+                    this.itemHelper.getItem(rootItemBeingAdded._tpl)[1]._parent,
+                )
+            )
+            {
+                i--;
+                continue;
+            }
+
             // Only randomise single items
             const isSingleStack = rootItemBeingAdded.upd.StackObjectsCount === 1;
             if (isSingleStack)