90 Degrees Reducing Elbow Malleable Iron Not Applicable ASTM A197 Class Class 150 For Pipe Schedule 40 1/4 in Female NPT 13/16 in 18 1/4 In.-18 1/8 in Female NPT 11/16 in 27 1/8 In.-27 Not Applicable Not Applicable Not Applicable Not Applicable Not Applicable Not Applicable Not Applicable Not Applicable Not Applicable Not Applicable Not Applicable Not Applicable 300 psi Maximum Operating Pressure