Product Name: Stainless Steel Barrel Nipple (NPT) Model NO.: YYNPT-03 Warranty: 5 Years Certification: CQC, TUV Customized: Customized Application: Water Pipe Technics: Casting Material: Stainless Steel Surface: Sand Blast Thread Distribution: External Thread Head Code: Round Connection: Male Size:1/4"-4": Length Can Be Ordered Trademark: YUANYU, OEM is welcome Transport Package: According to Customer's Requirement Specification: NPT Origin: Wenzhou, Zhejiang, China Product Description Stainless Steel Barrel Nipple (NPT)Size:1/4"-4"Material: AISI304 /AISI316(L)Treatment: sand blast /mirror polish/matt finish can be ordered.Length: can be ordered.As a manufacturer , we can produce the production according to customer's requirement.Mirror polish outside:Can be provided with best price