Index: firmware/App/Modes/ModeTreatmentParams.c
===================================================================
diff -u -r13a6fe0ad5a78622066e3adb12eaea431ad0df6d -r2193d357328608cd75103f8cc10ba9e649909d92
--- firmware/App/Modes/ModeTreatmentParams.c	(.../ModeTreatmentParams.c)	(revision 13a6fe0ad5a78622066e3adb12eaea431ad0df6d)
+++ firmware/App/Modes/ModeTreatmentParams.c	(.../ModeTreatmentParams.c)	(revision 2193d357328608cd75103f8cc10ba9e649909d92)
@@ -517,7 +517,7 @@
         sendTreatmentParamsRangesToUI( treatmentParameters[ TREATMENT_PARAM_TREATMENT_DURATION ].minimum.uInt,
                                        treatmentParameters[ TREATMENT_PARAM_TREATMENT_DURATION ].maximum.uInt,
                                        0.0,
-                                       MIN( (F32)setTxDuration * MAX_UF_RATE_ML_MIN, (F32)MAX_UF_VOLUME_ML ),
+                                       MIN( (F32)setTxDuration * MAX_UF_RATE_ML_MIN, treatmentParameters[ TREATMENT_PARAM_UF_VOLUME ].maximum.sFlt ),
                                        treatmentParameters[ TREATMENT_PARAM_DIALYSATE_FLOW ].minimum.uInt,
                                        treatmentParameters[ TREATMENT_PARAM_DIALYSATE_FLOW ].maximum.uInt );
     }