Rvs M22 Om M20 Draad Connector Kraan Gewrichten Water Tap Adapter Waterzuiveraar Accessoire Tuin Irrigatie Fittings|Wateraansluitingen voor de tuin| - AliExpress
QSP carterplug adapter M20 x 1,5 male - 1/8" NPT female
21950 Thread Adapter Male M20 x 1.25mm Black | K&M | Leisuretec
Amazon.com: M20 to 1/2" Inch NPT thread adapters. ( $8.44 Each - Sold in 10 Packs ) M20X1.5 threads on external side. 1/2" Inch NPT threads on internal side. Nickel plated brass