diff --git a/datagateway_api/src/search_api/filters.py b/datagateway_api/src/search_api/filters.py
index 2786d0c2..d585db1e 100644
--- a/datagateway_api/src/search_api/filters.py
+++ b/datagateway_api/src/search_api/filters.py
@@ -49,12 +49,19 @@ def apply_filter(self, query):
                 # matters):
                 # {"Parameter": {"value": ["numericValue", "stringValue", "dateTimeValue"]}} # noqa: B950
                 if field_name == "value":
-                    if isinstance(self.value, (int, float)):
+                    # If the value is a list, extract the first value to determine which
+                    # parameter value type should be used
+                    if self.operation == "between" and isinstance(self.value, list):
+                        filter_value = self.value[0]
+                    else:
+                        filter_value = self.value
+
+                    if isinstance(filter_value, (int, float)):
                         icat_field_name = icat_field_name[0]
-                    elif isinstance(self.value, datetime):
+                    elif isinstance(filter_value, datetime):
                         icat_field_name = icat_field_name[2]
-                    elif isinstance(self.value, str):
-                        if DateHandler.is_str_a_date(self.value):
+                    elif isinstance(filter_value, str):
+                        if DateHandler.is_str_a_date(filter_value):
                             icat_field_name = icat_field_name[2]
                         else:
                             icat_field_name = icat_field_name[1]
diff --git a/test/search_api/filters/test_search_api_where_filter.py b/test/search_api/filters/test_search_api_where_filter.py
index f212b20c..5e2d8794 100644
--- a/test/search_api/filters/test_search_api_where_filter.py
+++ b/test/search_api/filters/test_search_api_where_filter.py
@@ -177,6 +177,14 @@ class TestSearchAPIWhereFilter:
                 id="Numeric (float) parameter value (mapping that maps to multiple ICAT"
                 "fields)",
             ),
+            pytest.param(
+                SearchAPIWhereFilter("parameters.value", [20, 30], "between"),
+                "Document",
+                "SELECT o FROM Investigation o JOIN o.parameters AS p WHERE"
+                " p.numericValue between '20' and '30'",
+                id="Numeric (int) parameter value with between operator (mapping that"
+                " maps to multiple ICAT fields)",
+            ),
             pytest.param(
                 SearchAPIWhereFilter("parameters.value", ["test"], "eq"),
                 "Document",