Connects In 1/2 The Time Kwik-Couple® GRC From Allied Tube & Conduit https://www.youtube.com/watch?v=7ZNV8M4QCRQ No separate couplings to purchase, store, carry or install High-grade durable and ductile steel for long life Corrosion-resistant exterior and interior finishes UL listed and manufactured in accordance with ANSI standards