Arlington 720GBB5-25 Indoor/Outdoor Grounding Bridge Clamp with Stainless Steel Screws, Fits 1/2-Inch to 1-Inch Pipes, Bronze, 25-Pack. Provides intersystem bonding between indoor/outdoor power and communication systems. For 1/2-Inch to 1-Inch Metal Underground Water Pipe and 1/2-Inch, 5/8-Inch, or 3/4-Inch Grounding Rod. Provides 4 Termination points for bonding conductors, Easy to Install. Handles multiple hookup locations of communication, telephone, CATV or satellite dish. Approved for direct burial installations, includes stainless steel screws with bronze clamp, UL/CSA Listed. Use #8 to #2 hole for Equipment Grounding Conductor; Use #14 to #4 for Intersystem Bonding and Grounding Conductors copper or aluminum, solid or stranded. Meets 250.94 of the 2011 NEC. Made In USA. In the event any of our products are found to be defective, we will replace them with new product free of charge. The time limit for this warranty is one year following the date of sale or one year after the date of installation, whichever is the earlier date. This warranty does not apply when the product is used for any purpose other than the intended use as described in the Arlington literature. This warranty does not apply when the product is used for any installation which would violate the national electrical code or any code which takes precedence in a particular jurisdiction. Labor is not included.