Service Box Extensions

Products 15001-15018 are for 1″ rod style service boxes, typically boxes made from 1″ pipe with a 2-hole or plug style cover. Our extensions are made from 1¼” schedule 40 pipe with a 1″ threaded nipple welded to the 1¼” pipe.

By far the most common has one set screw, but we also offer extensions with two or three set screws. Set screws are ⁵⁄₁₆” – 18″ x ½” square head, hardened cup point. 1¼” service extensions are also available (15019-15024) and are standard with two set screws. Other sizes are available upon request.