[Model: red-ms-1a-3-4i]

reduced connector, brass, 1 inch (33.25 mm) male thread, 3/4 inch (24.2 mm) female thread
This reduced connector is oftn used by pumps and other components, that have a 1 inch standard female thread.

For screwed fastenings both for water and for fuel we recommend the thread seal (p-85175) or the thread sealing agent (p-97216).