Springfield Marine 1600005 Taper-Lock Deck Base – nine” x 7″ Flat. Constructed with Top-strength durable aluminum. Under the deck installation requires a three-1/2″ hole within the deck.
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Top-strength aluminum
Under the deck mount (requires a three-3/4″ hole in deck)
Use with any non-locking Spring-Lock base (sold one after the other)
Fast and simple installation
