diff --git a/Resources/Maps/saltern.yml b/Resources/Maps/saltern.yml
index 3950c2396d..d2bf3800f6 100644
--- a/Resources/Maps/saltern.yml
+++ b/Resources/Maps/saltern.yml
@@ -67210,7 +67210,7 @@ entities:
 - uid: 6376
   type: GasMixer
   components:
-  - rot: 3.141592653589793 rad
+  - rot: -1.5707963267948966 rad
     pos: 41.5,17.5
     parent: 853
     type: Transform
@@ -67224,7 +67224,7 @@ entities:
 - uid: 6377
   type: GasMixer
   components:
-  - rot: 3.141592653589793 rad
+  - rot: -1.5707963267948966 rad
     pos: 37.5,17.5
     parent: 853
     type: Transform
@@ -67238,7 +67238,7 @@ entities:
 - uid: 6378
   type: GasFilter
   components:
-  - rot: 3.141592653589793 rad
+  - rot: -1.5707963267948966 rad
     pos: 39.5,18.5
     parent: 853
     type: Transform
@@ -67249,7 +67249,7 @@ entities:
 - uid: 6379
   type: GasFilter
   components:
-  - rot: 3.141592653589793 rad
+  - rot: -1.5707963267948966 rad
     pos: 43.5,18.5
     parent: 853
     type: Transform
@@ -67804,7 +67804,7 @@ entities:
 - uid: 6439
   type: GasFilter
   components:
-  - rot: 3.141592653589793 rad
+  - rot: -1.5707963267948966 rad
     pos: 47.5,18.5
     parent: 853
     type: Transform
diff --git a/Resources/Prototypes/Entities/Structures/Piping/Atmospherics/trinary.yml b/Resources/Prototypes/Entities/Structures/Piping/Atmospherics/trinary.yml
index b50e80821c..e4c0a77cb0 100644
--- a/Resources/Prototypes/Entities/Structures/Piping/Atmospherics/trinary.yml
+++ b/Resources/Prototypes/Entities/Structures/Piping/Atmospherics/trinary.yml
@@ -11,15 +11,15 @@
         inlet:
           !type:PipeNode
           nodeGroupID: Pipe
-          pipeDirection: West
+          pipeDirection: North
         filter:
           !type:PipeNode
           nodeGroupID: Pipe
-          pipeDirection: South
+          pipeDirection: West
         outlet:
           !type:PipeNode
           nodeGroupID: Pipe
-          pipeDirection: East
+          pipeDirection: South
 
 - type: entity
   parent: GasTrinaryBase
@@ -36,6 +36,7 @@
       layers:
         - sprite: Structures/Piping/Atmospherics/pipe.rsi
           state: pipeTJunction
+          rotation: -90 # fuck you!!! who cares
           map: [ "enum.PipeColorVisualizer+Layers.Pipe" ]
         - state: gasFilter
           map: [ "enum.SubFloorShowLayerVisualizer+Layers.FirstLayer", "enum.GasFilterVisualizer+Layers.Enabled" ]
@@ -52,6 +53,51 @@
         - key: enum.GasFilterUiKey.Key
           type: GasFilterBoundUserInterface
     - type: GasFilter
+    - type: Flippable
+      mirrorEntity: GasFilterFlipped
+
+- type: entity
+  parent: GasFilter
+  id: GasFilterFlipped
+  name: gas filter
+  suffix: Flipped
+  placement:
+    mode: SnapgridCenter
+  components:
+  - type: Sprite
+    netsync: false
+    sprite: Structures/Piping/Atmospherics/gasfilter.rsi
+    layers:
+    - sprite: Structures/Piping/Atmospherics/pipe.rsi
+      state: pipeTJunction
+      rotation: -90
+      map: [ "enum.PipeColorVisualizer+Layers.Pipe" ]
+    - state: gasFilterF
+      map: [ "enum.SubFloorShowLayerVisualizer+Layers.FirstLayer", "enum.GasFilterVisualizer+Layers.Enabled" ]
+  - type: Flippable
+    mirrorEntity: GasFilter
+  - type: Appearance
+    visuals:
+    - type: SubFloorShowLayerVisualizer
+    - type: PipeConnectorVisualizer
+    - type: PipeColorVisualizer
+    - type: GasFilterVisualizer
+      disabledState: gasFilterF
+      enabledState: gasFilterFOn
+  - type: NodeContainer
+    nodes:
+      inlet:
+        !type:PipeNode
+        nodeGroupID: Pipe
+        pipeDirection: South
+      filter:
+        !type:PipeNode
+        nodeGroupID: Pipe
+        pipeDirection: West
+      outlet:
+        !type:PipeNode
+        nodeGroupID: Pipe
+        pipeDirection: North
 
 - type: entity
   parent: GasTrinaryBase
@@ -61,15 +107,15 @@
   placement:
     mode: SnapgridCenter
   components:
-    # TODO ATMOS Give this its actual sprite...
     - type: Sprite
       netsync: false
-      sprite: Structures/Piping/Atmospherics/gasfilter.rsi
+      sprite: Structures/Piping/Atmospherics/gasmixer.rsi
       layers:
         - sprite: Structures/Piping/Atmospherics/pipe.rsi
           state: pipeTJunction
+          rotation: -90
           map: [ "enum.PipeColorVisualizer+Layers.Pipe" ]
-        - state: gasFilter
+        - state: gasMixer
           map: [ "enum.SubFloorShowLayerVisualizer+Layers.FirstLayer" ]
     - type: Appearance
       visuals:
@@ -83,3 +129,40 @@
     - type: GasMixer
       inletOne: inlet
       inletTwo: filter
+    - type: Flippable
+      mirrorEntity: GasMixerFlipped
+
+- type: entity
+  parent: GasMixer
+  id: GasMixerFlipped
+  name: gas mixer
+  suffix: Flipped
+  placement:
+    mode: SnapgridCenter
+  components:
+  - type: Sprite
+    netsync: false
+    sprite: Structures/Piping/Atmospherics/gasmixer.rsi
+    layers:
+    - sprite: Structures/Piping/Atmospherics/pipe.rsi
+      state: pipeTJunction
+      rotation: -90
+      map: [ "enum.PipeColorVisualizer+Layers.Pipe" ]
+    - state: gasMixerF
+      map: [ "enum.SubFloorShowLayerVisualizer+Layers.FirstLayer", "enum.GasFilterVisualizer+Layers.Enabled" ]
+  - type: Flippable
+    mirrorEntity: GasMixer
+  - type: NodeContainer
+    nodes:
+      inlet:
+        !type:PipeNode
+        nodeGroupID: Pipe
+        pipeDirection: South
+      filter:
+        !type:PipeNode
+        nodeGroupID: Pipe
+        pipeDirection: West
+      outlet:
+        !type:PipeNode
+        nodeGroupID: Pipe
+        pipeDirection: North
diff --git a/Resources/Textures/Structures/Piping/Atmospherics/gasfilter.rsi/gasFilter.png b/Resources/Textures/Structures/Piping/Atmospherics/gasfilter.rsi/gasFilter.png
index 2c65982213..f47460c82a 100644
Binary files a/Resources/Textures/Structures/Piping/Atmospherics/gasfilter.rsi/gasFilter.png and b/Resources/Textures/Structures/Piping/Atmospherics/gasfilter.rsi/gasFilter.png differ
diff --git a/Resources/Textures/Structures/Piping/Atmospherics/gasfilter.rsi/gasFilterF.png b/Resources/Textures/Structures/Piping/Atmospherics/gasfilter.rsi/gasFilterF.png
new file mode 100644
index 0000000000..ac4d4affd5
Binary files /dev/null and b/Resources/Textures/Structures/Piping/Atmospherics/gasfilter.rsi/gasFilterF.png differ
diff --git a/Resources/Textures/Structures/Piping/Atmospherics/gasfilter.rsi/gasFilterFOn.png b/Resources/Textures/Structures/Piping/Atmospherics/gasfilter.rsi/gasFilterFOn.png
new file mode 100644
index 0000000000..132c25e737
Binary files /dev/null and b/Resources/Textures/Structures/Piping/Atmospherics/gasfilter.rsi/gasFilterFOn.png differ
diff --git a/Resources/Textures/Structures/Piping/Atmospherics/gasfilter.rsi/gasFilterOn.png b/Resources/Textures/Structures/Piping/Atmospherics/gasfilter.rsi/gasFilterOn.png
index 06cdacf03e..7aed631057 100644
Binary files a/Resources/Textures/Structures/Piping/Atmospherics/gasfilter.rsi/gasFilterOn.png and b/Resources/Textures/Structures/Piping/Atmospherics/gasfilter.rsi/gasFilterOn.png differ
diff --git a/Resources/Textures/Structures/Piping/Atmospherics/gasfilter.rsi/meta.json b/Resources/Textures/Structures/Piping/Atmospherics/gasfilter.rsi/meta.json
index c65ad1d7e1..5d1956f4d4 100644
--- a/Resources/Textures/Structures/Piping/Atmospherics/gasfilter.rsi/meta.json
+++ b/Resources/Textures/Structures/Piping/Atmospherics/gasfilter.rsi/meta.json
@@ -1,20 +1,29 @@
 {
-   "version":1,
-   "size":{
-      "x":32,
-      "y":32
-   },
-   "license":"CC-BY-SA-3.0",
-   "copyright":"Taken from https://github.com/tgstation/tgstation at commit 57cd1d59ca019dd0e7811ac451f295f818e573da",
-   "states":[
-      {
-         "name":"gasFilter",
-         "directions":4
-      },
-      {
-         "name":"gasFilterOn",
-         "directions":4,
-         "delays":[ [ 0.2, 0.2, 0.2, 0.2 ], [ 0.2, 0.2, 0.2, 0.2 ], [ 0.2, 0.2, 0.2, 0.2 ], [ 0.2, 0.2, 0.2, 0.2 ] ]
-      }
-   ]
-}
\ No newline at end of file
+  "version": 1,
+  "license": "CC-BY-SA-3.0",
+  "copyright": "Taken from https://github.com/tgstation/tgstation at commit 57cd1d59ca019dd0e7811ac451f0.295f818e573da",
+  "size": {
+    "x": 32,
+    "y": 32
+  },
+  "states": [
+    {
+      "name": "gasFilter",
+      "directions": 4
+    },
+    {
+      "name": "gasFilterF",
+      "directions": 4
+    },
+    {
+      "name": "gasFilterOn",
+      "directions": 4,
+      "delays": [ [ 0.2, 0.2, 0.2, 0.2 ], [ 0.2, 0.2, 0.2, 0.2 ], [ 0.2, 0.2, 0.2, 0.2 ], [ 0.2, 0.2, 0.2, 0.2 ] ]
+    },
+    {
+      "name": "gasFilterFOn",
+      "directions": 4,
+      "delays": [ [ 0.2, 0.2, 0.2, 0.2 ], [ 0.2, 0.2, 0.2, 0.2 ], [ 0.2, 0.2, 0.2, 0.2 ], [ 0.2, 0.2, 0.2, 0.2 ] ]
+    }
+  ]
+}
diff --git a/Resources/Textures/Structures/Piping/Atmospherics/gasmixer.rsi/gasMixer.png b/Resources/Textures/Structures/Piping/Atmospherics/gasmixer.rsi/gasMixer.png
new file mode 100644
index 0000000000..6825d992e2
Binary files /dev/null and b/Resources/Textures/Structures/Piping/Atmospherics/gasmixer.rsi/gasMixer.png differ
diff --git a/Resources/Textures/Structures/Piping/Atmospherics/gasmixer.rsi/gasMixerF.png b/Resources/Textures/Structures/Piping/Atmospherics/gasmixer.rsi/gasMixerF.png
new file mode 100644
index 0000000000..f816189c5d
Binary files /dev/null and b/Resources/Textures/Structures/Piping/Atmospherics/gasmixer.rsi/gasMixerF.png differ
diff --git a/Resources/Textures/Structures/Piping/Atmospherics/gasmixer.rsi/gasMixerFOn.png b/Resources/Textures/Structures/Piping/Atmospherics/gasmixer.rsi/gasMixerFOn.png
new file mode 100644
index 0000000000..6f93dccce9
Binary files /dev/null and b/Resources/Textures/Structures/Piping/Atmospherics/gasmixer.rsi/gasMixerFOn.png differ
diff --git a/Resources/Textures/Structures/Piping/Atmospherics/gasmixer.rsi/gasMixerOn.png b/Resources/Textures/Structures/Piping/Atmospherics/gasmixer.rsi/gasMixerOn.png
new file mode 100644
index 0000000000..2afb6fb00d
Binary files /dev/null and b/Resources/Textures/Structures/Piping/Atmospherics/gasmixer.rsi/gasMixerOn.png differ
diff --git a/Resources/Textures/Structures/Piping/Atmospherics/gasmixer.rsi/meta.json b/Resources/Textures/Structures/Piping/Atmospherics/gasmixer.rsi/meta.json
new file mode 100644
index 0000000000..d334b2ecb2
--- /dev/null
+++ b/Resources/Textures/Structures/Piping/Atmospherics/gasmixer.rsi/meta.json
@@ -0,0 +1,79 @@
+{
+    "version": 1,
+    "license": "CC-BY-SA-3.0",
+    "copyright": "Taken from https://github.com/tgstation/tgstation at commit 57cd1d59ca019dd0e7811ac451f0.295f818e573da",
+    "size": {
+        "x": 32,
+        "y": 32
+    },
+    "states": [
+        {
+            "name": "gasMixer",
+            "directions": 4
+        },
+        {
+            "name": "gasMixerF",
+            "directions": 4
+        },
+        {
+            "name": "gasMixerOn",
+            "directions": 4,
+            "delays": [
+                [
+                    0.2,
+                    0.2,
+                    0.2,
+                    0.2
+                ],
+                [
+                    0.2,
+                    0.2,
+                    0.2,
+                    0.2
+                ],
+                [
+                    0.2,
+                    0.2,
+                    0.2,
+                    0.2
+                ],
+                [
+                    0.2,
+                    0.2,
+                    0.2,
+                    0.2
+                ]
+            ]
+        },
+        {
+            "name": "gasMixerFOn",
+            "directions": 4,
+            "delays": [
+                [
+                    0.2,
+                    0.2,
+                    0.2,
+                    0.2
+                ],
+                [
+                    0.2,
+                    0.2,
+                    0.2,
+                    0.2
+                ],
+                [
+                    0.2,
+                    0.2,
+                    0.2,
+                    0.2
+                ],
+                [
+                    0.2,
+                    0.2,
+                    0.2,
+                    0.2
+                ]
+            ]
+        }
+    ]
+}