The Sea-Dog S/S Replacement 1-1/2″ Deck Fill Cap – 351390-1 features a slotted cap which requires a key to open and close for extra security. The cap is 1-1/2” and has a diameter of 1-7/8″, with a thread pitch 11-1/2 NPSM straight. Replacement cap includes attachment chain. Constructed of corrosion resistant investment cast 316 stainless steel. Remember: USCG regulations require bonding wire to assembly to prevent sparking. .
- 1-1/2″ 316 Stainless Steel Cap
- Slotted cap for extra security
- 11-1/2 thread pitch
- Includes attachment chain
- Fits Sea-Dog 351320 thru 351323