*- Threadless compression coupler for use with pointed copper-bonded ground rods - Inside of coupler is tapered so ground rod compresses during installation to form an irreversible conductive connection Material - Silicon Bronze Ground Rod Diameter, Nominal - 3/4" Complies With - IEC® EN 62561-2 Length (L) - 69.8 mm Unit Weight - 0.2 kg Certifications - CSA 46866 | cULus | Qualifoudre Standard Packaging Quantity - 25 pc UPC - 78285630670 EAN-13 - 8711893017298