Polyform A-4 Red Heavy-Duty Marine Buoy 20.5in Diameter Marker Fender

The Polyform A-4 Red Buoy is a heavy-duty, all-purpose marine buoy measuring 20.5 inches in diameter by 27 inches tall. Part of the legendary A-Series lineup — the product that launched the Polyform brand — this buoy is built for demanding real-world conditions on oceans, seas, rivers, and lakes. It ships deflated and is sold individually.

With its signature blue ropehold and proven one-piece construction, the A-4 is widely trusted as a marker buoy, anchor buoy, mooring buoy, and heavy-duty boat fender for vessels approximately 50–60 feet in length.

Key Features:

• Even wall thickness for maximum strength and durability
• Heavy-duty reinforced ropehold — 1.125 in. eye diameter
• Polyform's unique vinyl valve system
• One-piece construction for long-lasting reliability
• High-visibility red color for easy spotting on the water
• Excellent choice as a rafting fender
• Made in the U.S.A.

Technical Specifications:

• Size: 20.5 in. diameter x 27 in. tall (52.1 x 68.6 cm)
• Ropehold Eye Diameter: 1.125 in. (2.9 cm)
• Circumference: 64.4 in. (163.6 cm)
• Volume: 22.5 gallons (85.2 L)
• Suggested Boat Size (as fender): 50–60 ft.

Ships deflated. Inflate using a Polyform Inflation Adapter with any standard tire pump connection, a tapered nozzle blow gun, or a Polyform specialty hand pump (sold separately). Manufacturer Part Number: A-4 RED