Rail support brackets are available for 2 3/8" and 3 1/2" masts. The 2 3/8" is designed to give support the radar mast along any 1" horizontal railing. Most must be mounted within 1" for railing. The 3 1/2" bracket is cast in aluminum and has a durable white glossy baked on urethane coating and is padded to provide a secure, rattle-free installation. It can be mounted to any flat surface or attached to any 1" diameter railing.
The Side Mount Top Support Bracket gives you the ability to support the mast against a bulkhead, cabin side or vertical transom. For 2 3/8" mast only.
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Edson Top Support Bracket - Rail Mount 1" Rail - 3-1/2" Mast