![TACO Grand Slam 300 Universal Backing Plate f/GS-300 GS-390 - Pair [BP-0300BSY-1] Boat Outfitting | Tools NavAlert constantly monitors the whole](https://cdn.shopify.com/s/files/1/0847/8602/0648/files/109640XL.jpg?v=1753756051)
![TACO Grand Slam 300 Universal Backing Plate f/GS-300 GS-390 - Pair [BP-0300BSY-1] Boat Outfitting | Tools NavAlert constantly monitors the whole](https://cdn.shopify.com/s/files/1/0847/8602/0648/files/109640BXL.jpg?v=1753756051)
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Ships within 48 hours · Estimated delivery Aug 20 - Aug 25
NavAlert constantly monitors the whole network
Up to five units can be connected in parallel
but thunder can only be heard from 10 miles away
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TACO Grand Slam 300 Universal Backing Plate f/GS-300 GS-390 - Pair [BP-0300BSY-1] Boat Outfitting | Tools NavAlert constantly monitors the wholeGrand Slam 300 Universal Backing Plate for GS 300 & GS 390 Pair The Grand Slam 300 Universal Backing Plate is designed exclusively for the innovative line of TACO Marine Grand Slam Outrigger Mounts providing strength and directional guidance to your base when installed through your T top. These unique backing plates feature directional markers every 22. 5, which align with the locking detents of the outrigger mounts as they are rotated and locked into
