Parker 68P-8-4 Compression Fitting for Thermoplastic and Soft Metal Tubing, Poly-Tite, Tube to Pipe, Brass, Compression and Male Pipe Connector, 1/2" and 1/4": Amazon.com: Industrial & Scientific
Moon 369-1011024 Aluminum Fire Hose Adapter, Rocker Lug, 1" NPSH RIG RL Female x 1" NH Male: Fire Hose Fittings: Amazon.com: Industrial & Scientific
Brennan Industries 5503-06-06-FG Forged Steel 45 Degree Street Elbow Tube Fitting, 3/8"-18 NPTF x 3/8"-18 NPTF Thread, 3/8" Male NPTF x 3/8" Female NPTF: Industrial Pipe Fitting: Amazon.com: Industrial & Scientific
RAINPAL BBF020 LF Compliant Brass Bulkhead Tank Fitting (Double Female 1/2” NPT and Male 3/4" NH Garden Hose Threaded, 4 oz each) (1) - - Amazon.com
Thread fitting made of stainless steel (V4A) > Reducer AG(R) x IG(Rp) reduces >>> 1/8 to 4 inch desired size simply choose yourself > 1 1/2 inch to 1 inch. : Amazon.de: DIY & Tools