Nanda Millar Company manufactures Stainless Steel Couplings with Cross Rib Construction. Nanda Millar Company is an ISO 9001:2000 registered company. Stainless Steel Couplings with Cross Rib Construction is used for 2 inch or 3 inch and for other sizes they come with plain surface. Stainless Steel Couplings with Cross Rib Construction are cast of high quality type 304SS for corrosion resistance and strength. It is also available in SS316 castings. The gasket of the couplings is made of EPDM or Nitrile.