1/2" NPT Male x 1/2" NPT Female Swivel Straight 1404-08-08 Adapter 9-1404-8-8 | eBay
NPT 1/2 Female Thread to 1/2 Inch Male Thread Pipe Fitting Converter A — gotonovo
1-1/2" NPT Female Pipe x 1-1/2" NST (NH) Male Adapter – FireHoseSupply.com
Stainless Steel Swing Check Valve - 1/2” up to 2” NPT
1/2" NPT FEMALE x 1/4" NPT MALE 3000LB HEX ADAPTOR-FM-300-08-04 — Custom Fittings
3/4" NPT Male x 1/2" NPT Male Straight 5404-12-08 Adapter | NPT Male to NPT Male - Hex Nipple | NPT to NPT | Hydraulic Adapters & Fittings | Hydraulics | www.surpluscenter.com