Hot dip galvanizing coupled with superior strength-to-weight-ratios (compared to Grade 43 chain) make Grade 70 chain a great choice for many boaters. Before purchasing Grade 70 chain, double check with the manufacturer of your windlass for gypsy compatibility. Frequently, a gypsy specifically designed for Grade 70 chain will need to be ordered. Sold by the foot in lengths up to the standard pack. Made in USA. Two-year warranty.