Pope Products 18mm-to 12mm-hose-coupler-1011804

Pope 18mm x 12mm Plastic Hose Coupler - Irrigation Express

Pope 12mm Comfort Grip Hose Connector - Malvern Irrigation Supplies

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Pope 18mm To 2 x 12mm Hose Coupler - Bunnings Australia

Apollo 1/2 in. Brass PEX-A Barb x 1/2 in. Female Sweat Adapter

Pope 12mm Brass Flo-thru Hose Connector - Irrigation Express

UV Pond Clarifier – TotalPond

Pipe Fittings - Brass Pipe Fittings at Hughes Supply

Pope Products 12 mm 2 Way Hose Coupler