Comparison : Item # 1317-40-160, 2"-11.5 Tube O.D. x Close(2") Length Schedule 40 Seamless Lead Free Brass
Item # 1317-40-161, 2"-11.5 Tube O.D. x 2-1/2" Length Schedule 40 Seamless Lead Free Brass
Item # 1317-40-162, 2"-11.5 Tube O.D. x 3" Length Schedule 40 Seamless Lead Free Brass
Item # 1317-40-163, 2"-11.5 Tube O.D. x 3-1/2" Length Schedule 40 Seamless Lead Free Brass
Item # 1317-40-164, 2"-11.5 Tube O.D. x 4" Length Schedule 40 Seamless Lead Free Brass