Index: sources/gui/qml/globals/Variables.qml
===================================================================
diff -u -rdb2238dcf17941be6a3c587b55a3ef06b94cee96 -r4f87126626b76aa04ddcf2ae92e04e118cdcbe01
--- sources/gui/qml/globals/Variables.qml	(.../Variables.qml)	(revision db2238dcf17941be6a3c587b55a3ef06b94cee96)
+++ sources/gui/qml/globals/Variables.qml	(.../Variables.qml)	(revision 4f87126626b76aa04ddcf2ae92e04e118cdcbe01)
@@ -137,9 +137,12 @@
     readonly property int     bloodFlowResolution   : 25
     readonly property int dialysateFlowResolution   : 50
     readonly property int      durationResolution   : 15 // PRS346
-    // Precision
-    readonly property int ultrafiltrationPrecision  :  3
 
+    // Ultrafiltration
+    readonly property real ultrafiltrationMinDef    :  0.000
+    readonly property real ultrafiltrationMaxDef    :  8.000
+    readonly property int  ultrafiltrationPrecision :  3
+
     // Inline Blood Pressures
     //  - Artrial
     //  - Artrial - Entire pressure value range