Hex Bushing Malleable Iron Not Applicable ASTM A197 Class Class 150 For Pipe Schedule 40 1 1/4 in Male NPT Not Applicable Not Applicable 1 1/4 In.-11.5 3/8 in Female NPT Not Applicable Not Applicable 3/8 In.-18 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