diff --git a/src/main/java/refinedstorage/api/network/INetworkMaster.java b/src/main/java/refinedstorage/api/network/INetworkMaster.java
index 16458f2d8..1b2721ed6 100755
--- a/src/main/java/refinedstorage/api/network/INetworkMaster.java
+++ b/src/main/java/refinedstorage/api/network/INetworkMaster.java
@@ -7,7 +7,7 @@ import net.minecraft.util.math.BlockPos;
 import refinedstorage.api.autocrafting.ICraftingPattern;
 import refinedstorage.api.autocrafting.ICraftingTask;
 import refinedstorage.api.storage.CompareFlags;
-import refinedstorage.api.storage.IItemList;
+import refinedstorage.api.storage.IGroupedStorage;
 
 import javax.annotation.Nonnull;
 import javax.annotation.Nullable;
@@ -60,9 +60,9 @@ public interface INetworkMaster {
     IWirelessGridHandler getWirelessGridHandler();
 
     /**
-     * @return A {@link IItemList} containing all network items.
+     * @return The {@link IGroupedStorage} of this network
      */
-    IItemList getItems();
+    IGroupedStorage getStorage();
 
     /**
      * @return The crafting tasks in this network, do NOT modify this list
@@ -123,12 +123,12 @@ public interface INetworkMaster {
     /**
      * Sends to all clients in a grid a packet with all the items in this network.
      */
-    void updateItemsWithClient();
+    void updateStorageWithClient();
 
     /**
      * Sends a player a packet with all the items in this network.
      */
-    void updateItemsWithClient(EntityPlayerMP player);
+    void updateStorageWithClient(EntityPlayerMP player);
 
     /**
      * Pushes an item to this network.
diff --git a/src/main/java/refinedstorage/api/storage/IGroupedStorage.java b/src/main/java/refinedstorage/api/storage/IGroupedStorage.java
new file mode 100755
index 000000000..0b86e28c4
--- /dev/null
+++ b/src/main/java/refinedstorage/api/storage/IGroupedStorage.java
@@ -0,0 +1,53 @@
+package refinedstorage.api.storage;
+
+import net.minecraft.item.ItemStack;
+import refinedstorage.api.network.INetworkMaster;
+
+import java.util.Collection;
+import java.util.List;
+
+/**
+ * This holds all items from all the connected storages from a {@link INetworkMaster}.
+ */
+public interface IGroupedStorage {
+    /**
+     * Rebuilds the storages and items for a network. Typically called when a {@link IStorageProvider} is
+     * added or removed from the network.
+     *
+     * @param master The network
+     */
+    void rebuild(INetworkMaster master);
+
+    /**
+     * @return A list of {@link IStorage} connected to this network
+     */
+    List<IStorage> getStorages();
+
+    /**
+     * Adds an item to the network. Will merge it with another item if it already exists.
+     *
+     * @param stack The stack to add, do NOT modify
+     */
+    void add(ItemStack stack);
+
+    /**
+     * Removes a item from the network.
+     *
+     * @param stack The item to remove, do NOT modify
+     */
+    void remove(ItemStack stack);
+
+    /**
+     * Gets an item from the network, does not decrement its count.
+     *
+     * @param stack The stack to find
+     * @param flags The flags to compare on, see {@link CompareFlags}
+     * @return The stack, do NOT modify
+     */
+    ItemStack get(ItemStack stack, int flags);
+
+    /**
+     * @return All stacks in this storage network
+     */
+    Collection<ItemStack> getStacks();
+}
diff --git a/src/main/java/refinedstorage/api/storage/IItemList.java b/src/main/java/refinedstorage/api/storage/IItemList.java
deleted file mode 100755
index fdbb08da4..000000000
--- a/src/main/java/refinedstorage/api/storage/IItemList.java
+++ /dev/null
@@ -1,20 +0,0 @@
-package refinedstorage.api.storage;
-
-import net.minecraft.item.ItemStack;
-import refinedstorage.api.network.INetworkMaster;
-
-import java.util.List;
-
-public interface IItemList {
-    void rebuild(INetworkMaster master);
-
-    List<IStorage> getStorages();
-
-    void add(ItemStack stack);
-
-    void remove(ItemStack stack);
-
-    ItemStack get(ItemStack stack, int flags);
-
-    List<ItemStack> getStacks();
-}
diff --git a/src/main/java/refinedstorage/api/storage/IStorageProvider.java b/src/main/java/refinedstorage/api/storage/IStorageProvider.java
index 8b344de05..cc4067512 100755
--- a/src/main/java/refinedstorage/api/storage/IStorageProvider.java
+++ b/src/main/java/refinedstorage/api/storage/IStorageProvider.java
@@ -7,7 +7,7 @@ import java.util.List;
  */
 public interface IStorageProvider {
     /**
-     * Adds the storages.
+     * Adds the storages that this storage provides.
      *
      * @param storages The previously added storages
      */
diff --git a/src/main/java/refinedstorage/apiimpl/network/WirelessGridHandler.java b/src/main/java/refinedstorage/apiimpl/network/WirelessGridHandler.java
index 67788e1db..2344ddc42 100755
--- a/src/main/java/refinedstorage/apiimpl/network/WirelessGridHandler.java
+++ b/src/main/java/refinedstorage/apiimpl/network/WirelessGridHandler.java
@@ -57,7 +57,7 @@ public class WirelessGridHandler implements IWirelessGridHandler {
 
         player.openGui(RefinedStorage.INSTANCE, RefinedStorageGui.WIRELESS_GRID, player.worldObj, RefinedStorageUtils.getIdFromHand(hand), 0, 0);
 
-        network.updateItemsWithClient((EntityPlayerMP) player);
+        network.updateStorageWithClient((EntityPlayerMP) player);
 
         drainEnergy(player, ItemWirelessGrid.USAGE_OPEN);
 
diff --git a/src/main/java/refinedstorage/apiimpl/storage/ItemList.java b/src/main/java/refinedstorage/apiimpl/storage/GroupedStorage.java
similarity index 71%
rename from src/main/java/refinedstorage/apiimpl/storage/ItemList.java
rename to src/main/java/refinedstorage/apiimpl/storage/GroupedStorage.java
index bff2103df..eb9710e36 100755
--- a/src/main/java/refinedstorage/apiimpl/storage/ItemList.java
+++ b/src/main/java/refinedstorage/apiimpl/storage/GroupedStorage.java
@@ -1,19 +1,23 @@
 package refinedstorage.apiimpl.storage;
 
+import com.google.common.collect.ArrayListMultimap;
+import com.google.common.collect.Multimap;
+import net.minecraft.item.Item;
 import net.minecraft.item.ItemStack;
 import refinedstorage.RefinedStorageUtils;
 import refinedstorage.api.network.INetworkMaster;
 import refinedstorage.api.network.INetworkSlave;
-import refinedstorage.api.storage.IItemList;
+import refinedstorage.api.storage.IGroupedStorage;
 import refinedstorage.api.storage.IStorage;
 import refinedstorage.api.storage.IStorageProvider;
 
 import java.util.ArrayList;
+import java.util.Collection;
 import java.util.List;
 
-public class ItemList implements IItemList {
+public class GroupedStorage implements IGroupedStorage {
     private List<IStorage> storages = new ArrayList<IStorage>();
-    private List<ItemStack> stacks = new ArrayList<ItemStack>();
+    private Multimap<Item, ItemStack> stacks = ArrayListMultimap.create();
 
     @Override
     public void rebuild(INetworkMaster master) {
@@ -41,7 +45,7 @@ public class ItemList implements IItemList {
 
     @Override
     public void add(ItemStack stack) {
-        for (ItemStack otherStack : stacks) {
+        for (ItemStack otherStack : stacks.get(stack.getItem())) {
             if (RefinedStorageUtils.compareStackNoQuantity(otherStack, stack)) {
                 otherStack.stackSize += stack.stackSize;
 
@@ -49,17 +53,17 @@ public class ItemList implements IItemList {
             }
         }
 
-        stacks.add(stack.copy());
+        stacks.put(stack.getItem(), stack.copy());
     }
 
     @Override
     public void remove(ItemStack stack) {
-        for (ItemStack otherStack : stacks) {
+        for (ItemStack otherStack : stacks.get(stack.getItem())) {
             if (RefinedStorageUtils.compareStackNoQuantity(otherStack, stack)) {
                 otherStack.stackSize -= stack.stackSize;
 
                 if (otherStack.stackSize == 0) {
-                    stacks.remove(otherStack);
+                    stacks.remove(otherStack.getItem(), otherStack);
                 }
 
                 return;
@@ -69,7 +73,7 @@ public class ItemList implements IItemList {
 
     @Override
     public ItemStack get(ItemStack stack, int flags) {
-        for (ItemStack otherStack : stacks) {
+        for (ItemStack otherStack : stacks.get(stack.getItem())) {
             if (RefinedStorageUtils.compareStack(otherStack, stack, flags)) {
                 return otherStack;
             }
@@ -79,7 +83,7 @@ public class ItemList implements IItemList {
     }
 
     @Override
-    public List<ItemStack> getStacks() {
-        return stacks;
+    public Collection<ItemStack> getStacks() {
+        return stacks.values();
     }
 }
diff --git a/src/main/java/refinedstorage/network/MessageGridItems.java b/src/main/java/refinedstorage/network/MessageGridItems.java
index 2824463f9..082ef08af 100755
--- a/src/main/java/refinedstorage/network/MessageGridItems.java
+++ b/src/main/java/refinedstorage/network/MessageGridItems.java
@@ -41,9 +41,9 @@ public class MessageGridItems implements IMessage, IMessageHandler<MessageGridIt
 
     @Override
     public void toBytes(ByteBuf buf) {
-        buf.writeInt(network.getItems().getStacks().size());
+        buf.writeInt(network.getStorage().getStacks().size());
 
-        for (ItemStack item : network.getItems().getStacks()) {
+        for (ItemStack item : network.getStorage().getStacks()) {
             buf.writeInt(item.stackSize);
             ByteBufUtils.writeItemStack(buf, item);
         }
diff --git a/src/main/java/refinedstorage/tile/TileDetector.java b/src/main/java/refinedstorage/tile/TileDetector.java
index f4839c83b..e74bc18b5 100755
--- a/src/main/java/refinedstorage/tile/TileDetector.java
+++ b/src/main/java/refinedstorage/tile/TileDetector.java
@@ -53,7 +53,7 @@ public class TileDetector extends TileSlave implements ICompareConfig {
             boolean wasPowered = powered;
 
             if (slot != null) {
-                ItemStack stack = network.getItems().get(slot, compare);
+                ItemStack stack = network.getStorage().get(slot, compare);
 
                 if (stack != null) {
                     switch (mode) {
diff --git a/src/main/java/refinedstorage/tile/TileDiskDrive.java b/src/main/java/refinedstorage/tile/TileDiskDrive.java
index 8c8adc326..d1d492b91 100755
--- a/src/main/java/refinedstorage/tile/TileDiskDrive.java
+++ b/src/main/java/refinedstorage/tile/TileDiskDrive.java
@@ -65,7 +65,7 @@ public class TileDiskDrive extends TileSlave implements IStorageProvider, IStora
                 }
 
                 if (isConnected()) {
-                    network.getItems().rebuild(network);
+                    network.getStorage().rebuild(network);
                 }
             }
         }
diff --git a/src/main/java/refinedstorage/tile/TileSlave.java b/src/main/java/refinedstorage/tile/TileSlave.java
index f4cf4db1d..ab001933b 100755
--- a/src/main/java/refinedstorage/tile/TileSlave.java
+++ b/src/main/java/refinedstorage/tile/TileSlave.java
@@ -171,7 +171,7 @@ public abstract class TileSlave extends TileBase implements INetworkSlave, ISync
         this.redstoneMode = mode;
 
         if (this instanceof IStorageProvider && isConnected()) {
-            network.getItems().rebuild(network);
+            network.getStorage().rebuild(network);
         }
     }
 
diff --git a/src/main/java/refinedstorage/tile/controller/TileController.java b/src/main/java/refinedstorage/tile/controller/TileController.java
index 1aa854bff..4a908a169 100755
--- a/src/main/java/refinedstorage/tile/controller/TileController.java
+++ b/src/main/java/refinedstorage/tile/controller/TileController.java
@@ -25,7 +25,7 @@ import refinedstorage.api.network.INetworkMaster;
 import refinedstorage.api.network.INetworkSlave;
 import refinedstorage.api.network.IWirelessGridHandler;
 import refinedstorage.api.storage.CompareFlags;
-import refinedstorage.api.storage.IItemList;
+import refinedstorage.api.storage.IGroupedStorage;
 import refinedstorage.api.storage.IStorage;
 import refinedstorage.api.storage.IStorageProvider;
 import refinedstorage.apiimpl.autocrafting.BasicCraftingTask;
@@ -33,7 +33,7 @@ import refinedstorage.apiimpl.autocrafting.CraftingPattern;
 import refinedstorage.apiimpl.autocrafting.ProcessingCraftingTask;
 import refinedstorage.apiimpl.network.GridHandler;
 import refinedstorage.apiimpl.network.WirelessGridHandler;
-import refinedstorage.apiimpl.storage.ItemList;
+import refinedstorage.apiimpl.storage.GroupedStorage;
 import refinedstorage.block.BlockController;
 import refinedstorage.block.EnumControllerType;
 import refinedstorage.container.ContainerController;
@@ -58,8 +58,8 @@ public class TileController extends TileBase implements INetworkMaster, IEnergyR
     private GridHandler gridHandler = new GridHandler(this);
     private WirelessGridHandler wirelessGridHandler = new WirelessGridHandler(this);
 
-    private IItemList items = new ItemList();
-    private boolean rebuildItemList;
+    private IGroupedStorage storage = new GroupedStorage();
+    private boolean rebuildStorage;
 
     private List<INetworkSlave> slaves = new ArrayList<INetworkSlave>();
     private List<INetworkSlave> slavesToAdd = new ArrayList<INetworkSlave>();
@@ -131,13 +131,12 @@ public class TileController extends TileBase implements INetworkMaster, IEnergyR
             slaves.removeAll(slavesToRemove);
             slavesToRemove.clear();
 
-            if (rebuildItemList) {
-                System.out.println("Rebuilding item list");
-                items.rebuild(this);
+            if (rebuildStorage) {
+                storage.rebuild(this);
 
-                rebuildItemList = false;
+                rebuildStorage = false;
 
-                updateItemsWithClient();
+                updateStorageWithClient();
             }
 
             if (canRun()) {
@@ -229,7 +228,7 @@ public class TileController extends TileBase implements INetworkMaster, IEnergyR
         slavesToAdd.add(slave);
 
         if (slave instanceof IStorageProvider) {
-            rebuildItemList = true;
+            rebuildStorage = true;
         }
     }
 
@@ -238,7 +237,7 @@ public class TileController extends TileBase implements INetworkMaster, IEnergyR
         slavesToRemove.add(slave);
 
         if (slave instanceof IStorageProvider) {
-            rebuildItemList = true;
+            rebuildStorage = true;
         }
     }
 
@@ -265,9 +264,8 @@ public class TileController extends TileBase implements INetworkMaster, IEnergyR
         disconnectSlaves();
     }
 
-    @Override
-    public IItemList getItems() {
-        return items;
+    public IGroupedStorage getStorage() {
+        return storage;
     }
 
     @Override
@@ -342,7 +340,7 @@ public class TileController extends TileBase implements INetworkMaster, IEnergyR
             int score = 0;
 
             for (ItemStack input : patterns.get(i).getInputs()) {
-                ItemStack stored = items.get(input, CompareFlags.COMPARE_DAMAGE | CompareFlags.COMPARE_NBT);
+                ItemStack stored = storage.get(input, CompareFlags.COMPARE_DAMAGE | CompareFlags.COMPARE_NBT);
 
                 score += stored != null ? stored.stackSize : 0;
             }
@@ -388,7 +386,7 @@ public class TileController extends TileBase implements INetworkMaster, IEnergyR
 
         wirelessGridHandler.setRange(range);
 
-        Collections.sort(items.getStorages(), new Comparator<IStorage>() {
+        Collections.sort(storage.getStorages(), new Comparator<IStorage>() {
             @Override
             public int compare(IStorage left, IStorage right) {
                 int leftStored = left.getStored();
@@ -402,7 +400,7 @@ public class TileController extends TileBase implements INetworkMaster, IEnergyR
             }
         });
 
-        Collections.sort(items.getStorages(), new Comparator<IStorage>() {
+        Collections.sort(storage.getStorages(), new Comparator<IStorage>() {
             @Override
             public int compare(IStorage left, IStorage right) {
                 if (left.getPriority() == right.getPriority()) {
@@ -415,22 +413,22 @@ public class TileController extends TileBase implements INetworkMaster, IEnergyR
     }
 
     @Override
-    public void updateItemsWithClient() {
+    public void updateStorageWithClient() {
         for (EntityPlayer player : worldObj.playerEntities) {
             if (player.openContainer.getClass() == ContainerGrid.class && pos.equals(((ContainerGrid) player.openContainer).getGrid().getNetworkPosition())) {
-                updateItemsWithClient((EntityPlayerMP) player);
+                updateStorageWithClient((EntityPlayerMP) player);
             }
         }
     }
 
     @Override
-    public void updateItemsWithClient(EntityPlayerMP player) {
+    public void updateStorageWithClient(EntityPlayerMP player) {
         RefinedStorage.NETWORK.sendTo(new MessageGridItems(this), player);
     }
 
     @Override
     public ItemStack push(ItemStack stack, int size, boolean simulate) {
-        if (stack == null || stack.getItem() == null || items.getStorages().isEmpty()) {
+        if (stack == null || stack.getItem() == null || storage.getStorages().isEmpty()) {
             return ItemHandlerHelper.copyStackWithSize(stack, size);
         }
 
@@ -438,7 +436,7 @@ public class TileController extends TileBase implements INetworkMaster, IEnergyR
 
         ItemStack remainder = stack;
 
-        for (IStorage storage : items.getStorages()) {
+        for (IStorage storage : this.storage.getStorages()) {
             remainder = storage.push(remainder, size, simulate);
 
             if (remainder == null) {
@@ -461,9 +459,9 @@ public class TileController extends TileBase implements INetworkMaster, IEnergyR
                 }
             }
 
-            items.add(ItemHandlerHelper.copyStackWithSize(stack, sizePushed));
+            storage.add(ItemHandlerHelper.copyStackWithSize(stack, sizePushed));
 
-            updateItemsWithClient();
+            updateStorageWithClient();
         }
 
         return remainder;
@@ -476,7 +474,7 @@ public class TileController extends TileBase implements INetworkMaster, IEnergyR
 
         ItemStack newStack = null;
 
-        for (IStorage storage : items.getStorages()) {
+        for (IStorage storage : this.storage.getStorages()) {
             ItemStack took = storage.take(stack, requested - received, flags);
 
             if (took != null) {
@@ -495,9 +493,9 @@ public class TileController extends TileBase implements INetworkMaster, IEnergyR
         }
 
         if (newStack != null) {
-            items.remove(newStack);
+            storage.remove(newStack);
 
-            updateItemsWithClient();
+            updateStorageWithClient();
         }
 
         return newStack;
diff --git a/src/main/java/refinedstorage/tile/grid/TileGrid.java b/src/main/java/refinedstorage/tile/grid/TileGrid.java
index 4fbf5680b..38794ba6b 100755
--- a/src/main/java/refinedstorage/tile/grid/TileGrid.java
+++ b/src/main/java/refinedstorage/tile/grid/TileGrid.java
@@ -112,7 +112,7 @@ public class TileGrid extends TileSlave implements IGrid {
 
     public void onGridOpened(EntityPlayer player) {
         if (isConnected()) {
-            network.updateItemsWithClient((EntityPlayerMP) player);
+            network.updateStorageWithClient((EntityPlayerMP) player);
         }
     }