Index: sources/gui/qml/pages/treatment/adjustments/TreatmentAdjustmentUltrafiltrationEdit.qml
===================================================================
diff -u -r2270e3265bcbe5465589eb235ebf98cd849abcbd -r8e18daa30708e1996f1931913b31ca741de4a1a3
--- sources/gui/qml/pages/treatment/adjustments/TreatmentAdjustmentUltrafiltrationEdit.qml	(.../TreatmentAdjustmentUltrafiltrationEdit.qml)	(revision 2270e3265bcbe5465589eb235ebf98cd849abcbd)
+++ sources/gui/qml/pages/treatment/adjustments/TreatmentAdjustmentUltrafiltrationEdit.qml	(.../TreatmentAdjustmentUltrafiltrationEdit.qml)	(revision 8e18daa30708e1996f1931913b31ca741de4a1a3)
@@ -32,6 +32,7 @@
     QtObject { id: _private
         readonly property real minimum          : vTreatmentRanges.treatmentRanges_Ultrafiltration_Volume_Min
         readonly property real maximum          : vTreatmentRanges.treatmentRanges_Ultrafiltration_Volume_Max
+        readonly property real volumeRes        : vTreatmentRanges.ultrafiltrationVolumeRes
         readonly property real setVolume        : vTreatmentUltrafiltration.setVolume
         readonly property real volumeRemoved    : vTreatmentUltrafiltration.volumeRemoved
     }
@@ -89,8 +90,8 @@
             minimum         : _private.minimum
             minStop         : _private.volumeRemoved
             maximum         : _private.maximum
+            step            : _private.volumeRes
             unit            : Variables.unitVolume
-            step            : 0.1
             defaultValue    : { defaultValue = _private.setVolume } // set without binding
             active          : true
         }
Index: sources/view/hd/data/VTreatmentRanges.cpp
===================================================================
diff -u -r036d378b4b89db03c812584c1d0f682494d81568 -r8e18daa30708e1996f1931913b31ca741de4a1a3
--- sources/view/hd/data/VTreatmentRanges.cpp	(.../VTreatmentRanges.cpp)	(revision 036d378b4b89db03c812584c1d0f682494d81568)
+++ sources/view/hd/data/VTreatmentRanges.cpp	(.../VTreatmentRanges.cpp)	(revision 8e18daa30708e1996f1931913b31ca741de4a1a3)
@@ -156,5 +156,7 @@
     FROMVARIANT_WITHRETURN              ( rinsebackFlowRateMax              , "Rinseback Volume Ranges"                 , "Rinseback_Volume_Max"                , UInt  , isConfigsOk );
     FROMVARIANT_WITHRETURN              ( rinsebackFlowRateRes              , "Rinseback Volume Ranges"                 , "Rinseback_Volume_Res"                , UInt  , isConfigsOk );
 
+    FROMVARIANT_WITHRETURN              ( ultrafiltrationVolumeRes          , "Ultrafiltration Volume Ranges"           , "Ultrafiltration_Volume_Res"          , Float , isConfigsOk );
+
     emit didTreatmentRangesDone( isConfigsOk );
 }
Index: sources/view/hd/data/VTreatmentRanges.h
===================================================================
diff -u -re36852d9548379bd861d4b0838761d2aa5243dad -r8e18daa30708e1996f1931913b31ca741de4a1a3
--- sources/view/hd/data/VTreatmentRanges.h	(.../VTreatmentRanges.h)	(revision e36852d9548379bd861d4b0838761d2aa5243dad)
+++ sources/view/hd/data/VTreatmentRanges.h	(.../VTreatmentRanges.h)	(revision 8e18daa30708e1996f1931913b31ca741de4a1a3)
@@ -71,6 +71,9 @@
     RANGESET( qint32        , arterialPressureMonitor                       , 0)
     RANGESET( qint32        , venousPressureMonitor                         , 0)
 
+    // ultrafiltration
+    READONLY( float         , ultrafiltrationVolumeRes                      , 0)
+
     VIEW_DEC_CLASS(VTreatmentRanges                 )
     VIEW_DEC_SLOT(TreatmentRangesData               )
     VIEW_DEC_SLOT(SettingsData                      )