Nipple Fitting; Applicable Standard UL, FM, ULC, VdS, LPCB, BV; Size A 2-1/2"; Size B 2-1/2"; Overall Length 4"; Schedule 40 S; End Connection Grooved x Male Threaded; Material Carbon Steel; Material Specification ASTM A53/A135/A795; Process Fabricated; Lead Free; Outside Diameter 2.874"; Weight 1.9 Lb; Warranty 10 Year Limited