MPQ4543 Features: * Ground clamp * Comes with an adaptor for ease of use * Armored wire clamp adaptors have serrations that match the serration of ground clamp * Manufactured from cast copper alloy * Supplied with steel screws, plated for corrosion resistance * Provides maximum conductivity and strength * Wire clamp is used to connect armored or unarmored wire to water pipe for grounding * UL listed * Water pipe range: 4.5""-6"" * Wire range: 8-4/0 * Box quantity: 15