Springfield Marine 1640401 Spring-Lock Offset Extension. This 13" offset stainless steel post features heavy-duty stainless steel composition. Use this with any Spring-Lock Non-Locking seat mount (sold separately).

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Product Review

Springfield Marine 1640401 Spring-Lock Offset Extension. This 13" offset stainless steel post features heavy-duty stainless steel composition. Use this with any Spring-Lock Non-Locking seat mount (sold separately).

  • Provides a full 5" offset extension
  • Use with Spring-Lock Non-Locking Seat Mounts (sold separately)
  • Use with any Non-Locking Spring-Lock Base
  • Hefty 1-3/4" diameter
  • Dimensions: 7" x 7"

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