The neoprene neck dam is the standard neck dam configuration on the KM 37, KM 37SS, KM 47, KM 77, KM 97, and SL 17C.
| Part # | Size | Neck Size |
|---|---|---|
| DSI 510-627 | Small | 11″ – 13″ |
| DSI 510-628 | Medium/Standard | 12″ – 14″ |
| DSI 510-629 | Large | 14″ – 16″ |
| DSI 510-688 | X-Large | 15″ – 17″ |
