DP12- Dampener plate for vertical hydrophone array

12" octagonal plate to be installed in-line above a drifting vertical hydrophone array to reduce vertical motion due to waves. Has an 8" stainless steel through-rod with SS eye attachments above and below. Made from 1/4" HDPE marine plastic with 316SS hardware to be impervious to seawater.  Allow 4-6 weeks for delivery of items that are not in-stock.