This classic Oval Deck Pipe is found on the foredeck of many fine vessels.Accepts line, thimble, shackle and chain to 3/8". The anchor chain holds the cover in place when the chain is suspended from hook. 304 stainless steel. Replacement Cover and Chain available.Specifications Material:304 Stainless steel Flange:6 1/4" x 4 1/2" I.D.:4 3/8" x 2 3/8" Fastener Size Required: #8 FHMS