This Stainless Steel Coupling are widely acknowledged for superior quality, durability, resistant to corrosion and smooth functionality.Range: Forged Fittings 15 NB to 100 NB in 3000 LBS, 6000 LBS, 9000 LBS available with NACE MR 01-75. Grade: SS304, SS304L, SS 316, SS316L, SS310, SS 904LTypes Socket Weld (S/W) & Screwed (SCRD)