Apeks RK3 HD Fins

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RRP £118.00
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The Apeks RK3 HD builds on the impressive capabilities of the original RK3 by using a High Density (HD) rubber compound for a more effective, powerful fin. This new compound means that even small kicks produce greater thrust.

Free UK Delivery

The Apeks RK3 HD builds on the impressive capabilities of the original RK3 by using a High Density (HD) rubber compound for a more effective, powerful fin. This new compound means that even small kicks produce greater thrust.

Apeks RK3 HD Fins

The Apeks RK3 HD builds on the impressive capabilities of the original RK3 by using a High Density (HD) rubber compound for a more effective, powerful fin. This new compound means that even small kicks produce greater thrust.

The RK3 HD’s fin shape is compact and wide design so you output impressive thrust without compromising on manoeuvrability. THE HD rubber compound used on the RK3 HD is even more robust than that used on the standard model ensuring there is no environment too hostile for them. The blade of the fin is vented, reducing resistance on your upstroke and enhancing thrust on the downstroke, while the blade itself offers just enough flex to reduce leg fatigue.

A bungee strap at the heel keeps your feet secure and comfortable. As you descend the bunches naturally cinches down on your dive boot as the water pressure around you compresses it.

Key Benefits

  • Compact & Wide Fin Shape - The Apeks RK3 features a compact and wide fin shape that allows you to produce considerable thrust and manoeuvrability.
  • HD Rubber - Featuring an improved High Density Rubber Compound allows the RK3 HD to produce greater thrust and power from every kick. Perfect for divers in drysuits
  • Cold Water Ready - The robust rubber compound means the RK3 fin is suitable for the most brutal of ice-cold dive environments.
  • Vented Blade Design - The vented blade design helps to reduce leg fatigue and increase thrust. On the upstroke water passes through the blade during the weakest part of your stroke, reducing strain. During your powerful downstroke the vents help channel water away from the blade from maximum power.
  • Bungee Spring Strap - Easily get in and out of your RK3 HD fins with the removable bungee spring strap. Once your foot is in it automatically compresses on your foot for a consistent, comfortable fit even as you descend in the water.
  • Easy-Storage - Easily store or carry your RK3 Fins with a carabinier by looping it through the large grommet holes at the tip of the fin.

Who is the Apeks RK3 HD Fin For?

Popular with the military, dive professionals and public safety divers for the decades the Apeks RK3 HD fin is the perfect choice if you’re looking for an indestructible fin that will do everything you need it to do, anywhere in the world. Even if you’re a recreational diver the Apeks RK3 HD offers you years of diving enjoyment and fun in the sea.

Who are Apeks?

Well known for their design and manufacturing of high quality breathing apparatus, Apeks supply more UK divers with regulators than any other dive manufacturer. Apeks has grown to become one of the benchmarks of the industry with superior standards in both engineering and design. Innovative development of not only their regulators but other diving equipment, Apeks offer a lifetime guarantee on all of their equipment, a testimony to the reliability and quality.

Apeks RK3 Fin Specifications
  Weight (Per Fin) Length  Foot Depth Foot Width



22cm 9cm
Large   1.19kg  54.5cm  25.5cm  9.5cm
Super   1.27kg  57cm  27cm  10cm
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