Southland 567-035HC Galvanized Steel Nipple, 1-1/2" x 3-1/2" Since our beginning in 1917 as the Mueller metals co. And later Mueller brass co., Mueller industries has built a well-earned reputation for offering the finest-quality plumbing, hvac, refrigeration, and industrial products in the industry. Features Galvanized steel nipples For use with gas, oil, and air applications 1-1/2" x 3.5" Zinc-coated galvanized iron construction for water and drainage applications USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.