Charlotte Pipe 1-1/2 in. PVC Schedule 40 S x S Coupling PVC021001400HD - The Home Depot
Horiznext npt 1/2 (means the inner diameter of the thread is 3/4 inch) cast female taper threaded pipe coupling, stainless steel 304 coupler for mush tun cooler and shower hose, 2 pcs - Amazon.com
Amazon.com : 5 Pack - Orbit 1/2 Inch Female Thread PVC Coupling for Sprinkler Pipe : Patio, Lawn & Garden
Sigma ProConnex 1-1/2-in Zinc-plated Steel Threaded Coupling Conduit Fittings in the Conduit Fittings department at Lowes.com
Sigma ProConnex 1-1/2-in Zinc-plated Steel Threaded Coupling Conduit Fittings in the Conduit Fittings department at Lowes.com
Amazon.com: FangKingNo 5pcs 1.5 Inch White PVC Female Adapter Pipe Fittings (Slip to Female Thread) Coupling with Female Hose Thread Schedule 40 (1 1/2") 5 of pack : Industrial & Scientific
ZUSA-PF-6793 | Pipe Fittings - Coupling, Female NPT, 316 Stainless Steel Class 150 | USA Industrials | MISUMI