Polyform 74-639-830 Center Tube HTM Series Fender, 10.5" x 27" , Catalina Blue alt-005448 Full transmit and receive AIS

Full transmit and receive AIS for enhanced situational awareness and safety

See engine application chart for more information

Deck plate with watertight O-ring seal

Shafts should be greased at installation

Four stainless screws are included with each plate

Polyform 74-639-830 Center Tube HTM Series Fender, 10.5" x 27" , Catalina Blue alt-005448 Full transmit and receive AISEven wall thickness for maximum strength Molded in ribs for strength and abrasion resistance Reinforced tube ends Designed for use in medium duty applications in both permanent protected and unprotected moorings Unique Polyform valve for years of service