diff --git a/epc_data/tests/app.py b/epc_data/tests/app.py
index 2e03fc7e..f67ecc24 100644
--- a/epc_data/tests/app.py
+++ b/epc_data/tests/app.py
@@ -64,7 +64,11 @@ def handler():
 
         if is_pitched:
             try:
-                return int(description_lower.split("pitched,")[-1].split("mm")[0].lstrip().rstrip())
+
+                thickness = description_lower.split("pitched,")[-1].split("mm")[0].lstrip().rstrip()
+                if "+" in thickness:
+                    return thickness
+                return int(thickness)
             except ValueError as _:
                 desc = description_lower.split("pitched,")[-1].lstrip().split(" ")[0]
                 return search_description_options(desc)