diff --git a/src/SimNDT/gui/twophasemodelimmersioncase.ui b/src/SimNDT/gui/twophasemodelimmersioncase.ui
new file mode 100644
index 0000000..78429ae
--- /dev/null
+++ b/src/SimNDT/gui/twophasemodelimmersioncase.ui
@@ -0,0 +1,348 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>twoPhaseModelImmersionCaseDialog</class>
+ <widget class="QDialog" name="twoPhaseModelImmersionCaseDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>476</width>
+    <height>365</height>
+   </rect>
+  </property>
+  <property name="maximumSize">
+   <size>
+    <width>476</width>
+    <height>365</height>
+   </size>
+  </property>
+  <property name="windowTitle">
+   <string>Two-Phase Model (Immersion Case)</string>
+  </property>
+  <property name="locale">
+   <locale language="English" country="UnitedStates"/>
+  </property>
+  <widget class="QDialogButtonBox" name="buttonBox">
+   <property name="geometry">
+    <rect>
+     <x>90</x>
+     <y>330</y>
+     <width>341</width>
+     <height>32</height>
+    </rect>
+   </property>
+   <property name="orientation">
+    <enum>Qt::Horizontal</enum>
+   </property>
+   <property name="standardButtons">
+    <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+   </property>
+  </widget>
+  <widget class="QFrame" name="frame">
+   <property name="geometry">
+    <rect>
+     <x>20</x>
+     <y>110</y>
+     <width>441</width>
+     <height>182</height>
+    </rect>
+   </property>
+   <property name="frameShape">
+    <enum>QFrame::StyledPanel</enum>
+   </property>
+   <property name="frameShadow">
+    <enum>QFrame::Sunken</enum>
+   </property>
+   <widget class="QWidget" name="gridLayoutWidget">
+    <property name="geometry">
+     <rect>
+      <x>10</x>
+      <y>10</y>
+      <width>421</width>
+      <height>162</height>
+     </rect>
+    </property>
+    <layout class="QGridLayout" name="gridLayout">
+     <item row="2" column="2">
+      <widget class="QDoubleSpinBox" name="gradingDoubleSpinBox">
+       <property name="minimum">
+        <double>0.010000000000000</double>
+       </property>
+       <property name="maximum">
+        <double>0.800000000000000</double>
+       </property>
+       <property name="singleStep">
+        <double>0.200000000000000</double>
+       </property>
+       <property name="value">
+        <double>0.100000000000000</double>
+       </property>
+      </widget>
+     </item>
+     <item row="2" column="3">
+      <widget class="QLabel" name="label_5">
+       <property name="text">
+        <string>Grading Curve Coeff</string>
+       </property>
+      </widget>
+     </item>
+     <item row="1" column="3">
+      <widget class="QLabel" name="label_4">
+       <property name="text">
+        <string>Max Diameter (mm)</string>
+       </property>
+      </widget>
+     </item>
+     <item row="1" column="0">
+      <widget class="QSpinBox" name="labelSpinBox">
+       <property name="maximum">
+        <number>240</number>
+       </property>
+       <property name="singleStep">
+        <number>40</number>
+       </property>
+       <property name="value">
+        <number>80</number>
+       </property>
+      </widget>
+     </item>
+     <item row="3" column="2">
+      <widget class="QDoubleSpinBox" name="minAspectRatioDoubleSpinBox">
+       <property name="minimum">
+        <double>0.200000000000000</double>
+       </property>
+       <property name="maximum">
+        <double>1.000000000000000</double>
+       </property>
+       <property name="value">
+        <double>0.500000000000000</double>
+       </property>
+      </widget>
+     </item>
+     <item row="0" column="2">
+      <widget class="QDoubleSpinBox" name="minDiameterDoubleSpinBox">
+       <property name="minimum">
+        <double>0.200000000000000</double>
+       </property>
+       <property name="maximum">
+        <double>20.000000000000000</double>
+       </property>
+       <property name="singleStep">
+        <double>0.100000000000000</double>
+       </property>
+       <property name="value">
+        <double>0.500000000000000</double>
+       </property>
+      </widget>
+     </item>
+     <item row="0" column="1">
+      <widget class="QLabel" name="fractionLabel">
+       <property name="text">
+        <string>Concentration (%)</string>
+       </property>
+      </widget>
+     </item>
+     <item row="0" column="3">
+      <widget class="QLabel" name="label_2">
+       <property name="text">
+        <string>Min Diameter (mm)</string>
+       </property>
+      </widget>
+     </item>
+     <item row="0" column="0">
+      <widget class="QDoubleSpinBox" name="fractionDoubleSpinBox">
+       <property name="suffix">
+        <string>%</string>
+       </property>
+       <property name="minimum">
+        <double>0.100000000000000</double>
+       </property>
+       <property name="maximum">
+        <double>70.000000000000000</double>
+       </property>
+       <property name="value">
+        <double>10.000000000000000</double>
+       </property>
+      </widget>
+     </item>
+     <item row="3" column="3">
+      <widget class="QLabel" name="label_6">
+       <property name="text">
+        <string>Min Aspect Ratio</string>
+       </property>
+      </widget>
+     </item>
+     <item row="1" column="2">
+      <widget class="QDoubleSpinBox" name="maxDiameterDoubleSpinBox">
+       <property name="minimum">
+        <double>0.020000000000000</double>
+       </property>
+       <property name="maximum">
+        <double>20.000000000000000</double>
+       </property>
+       <property name="singleStep">
+        <double>0.100000000000000</double>
+       </property>
+       <property name="value">
+        <double>10.000000000000000</double>
+       </property>
+      </widget>
+     </item>
+     <item row="4" column="2">
+      <widget class="QDoubleSpinBox" name="maxAspectRatioDoubleSpinBox">
+       <property name="minimum">
+        <double>0.300000000000000</double>
+       </property>
+       <property name="maximum">
+        <double>1.000000000000000</double>
+       </property>
+       <property name="singleStep">
+        <double>0.100000000000000</double>
+       </property>
+       <property name="value">
+        <double>0.800000000000000</double>
+       </property>
+      </widget>
+     </item>
+     <item row="4" column="3">
+      <widget class="QLabel" name="label_7">
+       <property name="text">
+        <string>Max Aspect Ratio</string>
+       </property>
+      </widget>
+     </item>
+     <item row="1" column="1">
+      <widget class="QLabel" name="labelLabel">
+       <property name="text">
+        <string>Aggregates Label</string>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </widget>
+  </widget>
+  <widget class="QProgressBar" name="progressBar">
+   <property name="geometry">
+    <rect>
+     <x>30</x>
+     <y>300</y>
+     <width>411</width>
+     <height>23</height>
+    </rect>
+   </property>
+   <property name="value">
+    <number>24</number>
+   </property>
+  </widget>
+  <widget class="QFrame" name="frame_2">
+   <property name="geometry">
+    <rect>
+     <x>20</x>
+     <y>10</y>
+     <width>441</width>
+     <height>91</height>
+    </rect>
+   </property>
+   <property name="frameShape">
+    <enum>QFrame::StyledPanel</enum>
+   </property>
+   <property name="frameShadow">
+    <enum>QFrame::Sunken</enum>
+   </property>
+   <widget class="QWidget" name="gridLayoutWidget_2">
+    <property name="geometry">
+     <rect>
+      <x>10</x>
+      <y>10</y>
+      <width>411</width>
+      <height>71</height>
+     </rect>
+    </property>
+    <layout class="QGridLayout" name="gridLayout_2">
+     <item row="0" column="1">
+      <widget class="QLabel" name="label">
+       <property name="text">
+        <string>Box Width (mm)</string>
+       </property>
+      </widget>
+     </item>
+     <item row="0" column="0">
+      <widget class="QLineEdit" name="boxWidthLineEdit"/>
+     </item>
+     <item row="0" column="3">
+      <widget class="QLabel" name="label_3">
+       <property name="text">
+        <string>Box Height (mm)</string>
+       </property>
+      </widget>
+     </item>
+     <item row="0" column="2">
+      <widget class="QLineEdit" name="boxHeightLineEdit"/>
+     </item>
+     <item row="1" column="1">
+      <widget class="QLabel" name="label_8">
+       <property name="text">
+        <string>Cement Matrix Label</string>
+       </property>
+      </widget>
+     </item>
+     <item row="1" column="2" colspan="2">
+      <widget class="QCheckBox" name="circularSpecimenCheckBox">
+       <property name="text">
+        <string>Circular Specimen</string>
+       </property>
+      </widget>
+     </item>
+     <item row="1" column="0">
+      <widget class="QSpinBox" name="matrixLabelSpinBox">
+       <property name="maximum">
+        <number>240</number>
+       </property>
+       <property name="singleStep">
+        <number>40</number>
+       </property>
+       <property name="value">
+        <number>40</number>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </widget>
+  </widget>
+ </widget>
+ <resources/>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>twoPhaseModelImmersionCaseDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>248</x>
+     <y>254</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>157</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>twoPhaseModelImmersionCaseDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>316</x>
+     <y>260</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>286</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>