diff --git a/src/ess/isissans/data.py b/src/ess/isissans/data.py
index 589552ea..8a6f5020 100644
--- a/src/ess/isissans/data.py
+++ b/src/ess/isissans/data.py
@@ -1,6 +1,6 @@
 # SPDX-License-Identifier: BSD-3-Clause
-# Copyright (c) 2024 Scipp contributors (https://github.com/scipp)
-from ess.sans.data import Registry
+# Copyright (c) 2025 Scipp contributors (https://github.com/scipp)
+from ess.reduce.data import Registry
 from ess.sans.types import (
     BackgroundRun,
     DirectBeamFilename,
diff --git a/src/ess/loki/data.py b/src/ess/loki/data.py
index c0a6dc69..9cda0742 100644
--- a/src/ess/loki/data.py
+++ b/src/ess/loki/data.py
@@ -1,8 +1,8 @@
 # SPDX-License-Identifier: BSD-3-Clause
-# Copyright (c) 2023 Scipp contributors (https://github.com/scipp)
+# Copyright (c) 2025 Scipp contributors (https://github.com/scipp)
 from pathlib import Path
 
-from ess.sans.data import Registry
+from ess.reduce.data import Registry
 from ess.sans.types import (
     BackgroundRun,
     DirectBeamFilename,
@@ -152,7 +152,7 @@ def loki_tutorial_mask_filenames() -> list[PixelMaskFilename]:
 
 def loki_tutorial_poly_gauss_I0() -> Path:
     """Analytical model for the I(Q) of the Poly-Gauss sample."""
-    return Path(_registry.get_path('PolyGauss_I0-50_Rg-60.h5'))
+    return _registry.get_path('PolyGauss_I0-50_Rg-60.h5')
 
 
 def loki_tutorial_direct_beam_all_pixels() -> DirectBeamFilename:
diff --git a/src/ess/sans/data.py b/src/ess/sans/data.py
deleted file mode 100644
index 4e1f5201..00000000
--- a/src/ess/sans/data.py
+++ /dev/null
@@ -1,44 +0,0 @@
-# SPDX-License-Identifier: BSD-3-Clause
-# Copyright (c) 2023 Scipp contributors (https://github.com/scipp)
-
-
-class Registry:
-    def __init__(
-        self,
-        instrument: str,
-        files: dict[str, str],
-        version: str,
-        retry_if_failed: int = 3,
-    ):
-        import pooch
-
-        self._registry = pooch.create(
-            path=pooch.os_cache(f'ess/{instrument}'),
-            env=f'ESS_{instrument.upper()}_DATA_DIR',
-            base_url=f'https://public.esss.dk/groups/scipp/ess/{instrument}/'
-            + '{version}/',
-            version=version,
-            retry_if_failed=retry_if_failed,
-            registry=files,
-        )
-
-    def __contains__(self, key):
-        return key in self._registry.registry
-
-    def get_path(self, name: str, unzip: bool = False) -> str:
-        """
-        Get the path to a file in the registry.
-
-        Parameters
-        ----------
-        name:
-            Name of the file to get the path for.
-        unzip:
-            If `True`, unzip the file before returning the path.
-        """
-        import pooch
-
-        return self._registry.fetch(name, processor=pooch.Unzip() if unzip else None)
-
-
-__all__ = ['Registry']