2 X Watering Garden Sink Hose Pipe Tap Reducer Rubber Connector Adapter
Seaflow Blue Silicone Hose Reducer (28mm - 25mm ID)
Brass Pipe Fittings, Water Hose Adapter, G 1/2 Female to G 3/8 Male Reducer Adapter, Compression Fitting for Kitchen Bathroom Faucet, Pipe Connector with Rubber Washer,(2 Pack) : Amazon.co.uk: DIY & Tools
Straight Oil Resistant Rubber Hose Reducer (25-16mm) for Provent Kits