Sigma Electric 44660 NM/SE 3/4-Inch Clamp Type Connector, 3-Pack Go to amazon.com Related posts Top recommendation for romex connector tool FeatureDie Cast ConstructionUse with 10-2 NM thru 8-2 NM CableThis product is UL ListedThis Product is CSA listed Description3/4" NM Connector from Sigma Electric. Sigma has been a trusted manufacturer of metal conduit fittings and weatherproof products for over 25 years.