Scanstrut DS21A-S 4-9 mm Stainless Cable Seal

The Scanstrut DS21A-S is a stainless steel deck-entry seal for electrical and antenna cabling. Its IP68 watertight construction helps protect the opening where a cable enters the boat. The domed vertical profile also provides a protective cover around the cable entry.

This version is sized for cables 4 to 9 mm in diameter and connectors up to 21 mm. Both pre-drilled and blank sealing inserts are supplied for fitting the specific cable. With the split-seal arrangement, many connected cables can be installed without removing the plug.

The assembled seal stands approximately 20.5 mm above the mounting surface. Mounting hardware and an installation manual are included in the package. Choose the DS21A-S only when the actual cable and connector dimensions fit its range. Do not confuse the 4–9 mm cable range with the connector pass-through limit, which is a separate measurement. Browse more cable seals and glands.

• Fits cable diameters from 4 to 9 mm
• IP68 stainless steel vertical deck fitting
• Connector pass-through capacity up to 21 mm
• 20.5 mm high with seals and hardware supplied