Product Information Thread: NPT Select a Product Part NumberMaterialThread Size 300RHC25300# Iron1/4" 300RHC200300# Iron2" 300RHC75300# Iron3/4" 300RHC100300# Iron1" 300RHC125300# Iron1-1/4" 300RHC150300# Iron1-1/2" 300RHC38300# Iron3/8" 300RHC50300# Iron1/2" RHC125FS3000# Forged Steel1-1/4" RHC500150# Iron5" RHC100FS3000# Forged Steel1" RHC200150# Iron2" RHC38B125# Brass3/8" RHC75G150# Galvanized Iron3/4" RHC100B125# Brass1" RHC200FS3000# Forged Steel2" RHC50150# Iron1/2" RHC150G150# Galvanized Iron1-1/2" RHC25SS150# 316 Stainless Steel1/4" RHC400SS150# 316 Stainless Steel4" RHC100150# Iron1" RHC38SS150# 316 Stainless Steel3/8" RHC75B125# Brass3/4" RHC150SS150# 316 Stainless Steel1-1/2" RHC300150# Iron3" RHC50B125# Brass1/2" RHC150B125# Brass1-1/2" RHC25FS3000# Forged Steel1/4" RHC400G150# Galvanized Iron4" RHC100SS150# 316 Stainless Steel1" RHC25B125# Brass1/4" RHC50SS150# 316 Stainless Steel1/2" RHC125150# Iron1-1/4" RHC200SS150# 316 Stainless Steel2" RHC50FS3000# Forged Steel1/2" RHC75FS3000# Forged Steel3/4" RHC250150# Iron2-1/2" RHC400150# Iron4" RHC125B125# Brass1-1/4" RHC200G150# Galvanized Iron2" RHC38FS3000# Forged Steel3/8" RHC125SS150# 316 Stainless Steel1-1/4" RHC200B125# Brass2" RHC300G150# Galvanized Iron3" RHC50G150# Galvanized Iron1/2" RHC75SS150# 316 Stainless Steel3/4" RHC100G150# Galvanized Iron1" RHC18150# Iron1/8" RHC300SS150# 316 Stainless Steel3" RHC600150# Iron6" RHC38150# Iron3/8" RHC75150# Iron3/4" RHC25150# Iron1/4" RHC125G150# Galvanized Iron1-1/4" RHC18G150# Galvanized Iron1/8" RHC150FS3000# Forged Steel1-1/2" RHC150150# Iron1-1/2" RHC38G150# Galvanized Iron3/8" RHC25G150# Galvanized Iron1/4"