diff --git a/README.md b/README.md
index 964b6c9..cd2519f 100644
--- a/README.md
+++ b/README.md
@@ -166,6 +166,9 @@ This will scan for usable recipes and exclude those with "libram" in the tooltip
 **armor/cloth/50/intellect/stamina**<br/>
 This will scan the auction house for cloth armor which has a requirement of at least lvl 50 as well both intellect and stamina stats.
 
+**felcloth/exact/stack/5**<br/>
+This will search for auctions of felcloth with exactly 5 items in the stack.
+
 ## Historical Value
 
 aux condenses the prices you've scanned during a day (midnight to midnight) into a single value, similarly to retail Auctioneer's "stat-simple" module.
diff --git a/tabs/search/filter.lua b/tabs/search/filter.lua
index b95d33d..c2ce2ae 100644
--- a/tabs/search/filter.lua
+++ b/tabs/search/filter.lua
@@ -323,7 +323,7 @@ function set_filter_display_offset(x_offset, y_offset)
 end
 
 function initialize_filter_dropdown()
-	for _, filter in ipairs(T.temp-T.list('and', 'or', 'not', 'price', 'profit', 'vendor-profit', 'disenchant-profit', 'percent', 'disenchant-percent', 'bid-price', 'bid-profit', 'bid-vendor-profit', 'bid-disenchant-profit', 'bid-percent', 'bid-disenchant-percent', 'item', 'tooltip', 'min-level', 'max-level', 'rarity', 'left', 'utilizable', 'seller', 'isgear')) do
+	for _, filter in ipairs(T.temp-T.list('and', 'or', 'not', 'price', 'profit', 'vendor-profit', 'disenchant-profit', 'percent', 'disenchant-percent', 'bid-price', 'bid-profit', 'bid-vendor-profit', 'bid-disenchant-profit', 'bid-percent', 'bid-disenchant-percent', 'item', 'tooltip', 'min-level', 'max-level', 'rarity', 'left', 'utilizable', 'seller', 'isgear', 'stack')) do
 		UIDropDownMenu_AddButton(T.map(
 			'text', filter,
 			'value', filter,
diff --git a/util/filter.lua b/util/filter.lua
index 42facb8..0922be0 100644
--- a/util/filter.lua
+++ b/util/filter.lua
@@ -238,7 +238,16 @@ M.filters = {
             end
         end,
 	    },
-	
+
+	['stack'] = {
+		input_type = 'number',
+		validator = function(size)
+			return function(auction_record)
+				return auction_record.aux_quantity == size
+			end
+		end
+	},
+
 }
 
 function operator(str)