Springfield 2-7/8" Heavy Duty Mainstay w/Swivel [1250300] Plaques & Wall Art resulting in strong bottom echo

resulting in strong bottom echo returns and accurate depth readings

Use with all AIS class A and B transceivers

equally spaced positions with 5-1/2” of travel

The Class D amp will produce plenty of punch

Springfield 2-7/8" Heavy Duty Mainstay w/Swivel [1250300] Plaques & Wall Art resulting in strong bottom echo2 7 8" Heavy Duty Mainstay with Swivel Non removable pedestal system in 2 7 8" offers a heavy duty base and post for today's larger and faster recreational boats. The base is permanent mold AC7A aluminum alloy with an anodized finish for maximum strength and corrosion protection. Then a 2 7 8" heavy duty extruded post is pressed and hydra formed into the base mechanically forming them together. This proprietary process allows maximum strength for a