25 PK Garvin (53171-1)4" Square Extension Ring Drawn 2-1/8" Deep w/1" KO's 25 PK Garvin (53171-1)4" Square Extension Ring Drawn 2-1/8" Deep w/1" KO's The Garvin 53171-1 4" Square Extension Ring is a durable, drawn steel box extension designed to provide extra wiring capacity for electrical installations. With a 2-1/8" depth and 1-inch knockouts, it allows for easy conduit access and flexible wiring configurations. Made in the USA, this extension ring is built to meet industry standards for safety and reliability. Ideal for both commercial and residential applications, it ensures a secure and professional electrical setup. About Us Welcome to Help! Resale, your go-to consignment shop where value meets quality. At Help! Resale, we're dedicated to providing you with an exceptional shopping experience, whether you're looking to find the best deals or consign your gently used items. Help Resale 7200 Fair Oaks Blvd Ste 120 Carmichael CA 95608 Business Hours : Monday-Friday: 9:00 am to 5:30 pm (PST) All product and company names are trademarks TM or registered trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them. (description exceeds maximum possible length)