diff --git a/.idea/deploymentTargetSelector.xml b/.idea/deploymentTargetSelector.xml
new file mode 100644
index 0000000..b268ef3
--- /dev/null
+++ b/.idea/deploymentTargetSelector.xml
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="deploymentTargetSelector">
+    <selectionStates>
+      <SelectionState runConfigName="app">
+        <option name="selectionMode" value="DROPDOWN" />
+      </SelectionState>
+    </selectionStates>
+  </component>
+</project>
\ No newline at end of file
diff --git a/app/src/main/java/net/youapps/calcyou/data/converters/PressureConverter.kt b/app/src/main/java/net/youapps/calcyou/data/converters/PressureConverter.kt
index 399d3cd..e19eb06 100644
--- a/app/src/main/java/net/youapps/calcyou/data/converters/PressureConverter.kt
+++ b/app/src/main/java/net/youapps/calcyou/data/converters/PressureConverter.kt
@@ -11,6 +11,7 @@ class PressureConverter : UnitConverter {
         FactorUnit(R.string.bar, 1E5),
         FactorUnit(R.string.millibar, 1E2),
         FactorUnit(R.string.atmosphere, 101325.0),
-        FactorUnit(R.string.psi, 6894.757293168) // Pounds per Square Inch
+        FactorUnit(R.string.psi, 6894.757293168), // Pounds per Square Inch
+        FactorUnit(R.string.h2o, 249.082), // Inches of water
     )
 }
\ No newline at end of file
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 1789b63..82779d0 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -130,6 +130,7 @@
     <string name="millibar">Millibar</string>
     <string name="atmosphere">Atmosphere</string>
     <string name="psi">PSI</string>
+    <string name="h2o">H2O (Inches of water)</string>
     <string name="lumen">Lumen</string>
     <string name="candela">Candela</string>
     <string name="lux">Lux</string>