Apeks RK3 Fins | Scuba Center has been selling quality scuba diving and snorkeling equipment since 1973. You will find a wide selection of scuba and snorkeling equipment at both our Minneapolis and Eagan, Minnesota locations.

Apeks RK3 Fins | The Aqua Lung Group is committed to providing robust, reliable and high performance equipment to all parts of the Military & Professional diving community. Their clear goal is to be the premier “One Stop” provider of professional grade diving equipment to the commercial diving industry. | Amphibious Marine Tactical Equipment | Navy Search and Rescue (SAR) swimmer signals that he is ready to be hoisted back up to a hovering U.S. Navy SH-60F Seahawk helicopter. | WATER RESCUE, SAR SWIMMING, HELICOPTER OPERATIONS | Photo: U.S. Navy

Apeks RK3 Fins | Authorized Apeks Online Dealer | Aqua Lung diving equipment has been used for many years by Public Safety dive and rescue teams worldwide and has a reputation for reliability, performance and durability. Core breathing system products such as Apeks regulators provide field-proven capability and performance for SCUBA and surface-supplied diving operations in all environments. Key dive accessories, including fins, diver knives, masks and snorkels, have become benchmark products for the professional diver and the Aqua Lung group continues to develop equipment designed to meet the needs of the Public Safety market. Significant recent developments include ruggedized buoyancy compensators for Military & Professional use, and surface-supplied diving equipment.
Authorized Online Dealer

Scuba Center is a SAM ( formerly CCR ) registered supplier for the United States Government.  Our customers include: U.S. Coast Guard, U.S. Navy, U.S. Federal Government Agencies, Law Enforcement Agencies, Search and Rescue (SAR) Teams, Fire Departments, State and Local Government agencies, Commercial Diving Companies, School Districts, Television and Movie production companies, and many others.
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Apeks RK3 Fins

Scuba Center is an authorized Aqua Lung / Apeks Dealer.
This is your assurance that your equipment will come with the full manufacturer's warranty.

Authorized Dealer

Aqua Lung Rocket Fins, Super Rocket Fins, Rocket II Fins...

Apeks RK3 Fins | Authorized Apeks Online Dealer | Apeks vented rubber fins with spring straps. The next evolution of the popular Aqua lung Rocket II fins.

Inspired by technical diving and designed for all, the full range of Apeks scuba diving equipment, which now includes regulators, bladders, drysuits, instruments and accessories, has been adopted by technical divers around the world. Apeks scuba diving equipment is being used to explore some of the deepest, coldest and most advanced dive environments on earth. Because when the environment demands, only one thing matters; that your dive kit is designed, developed and tested to keep you safe and comfortable.

The RK3 fin design has been the standard for Military, Special Ops, Coast Guard, and Public Safety Divers for decades. It is a traditional all rubber design. The RK3 blade material is formulated to hold up in the toughest environments, temperatures, and abuse. The short wide blade provides maximum forward thrust while maintaining great maneuverability. The vented blade design reduces resistance on the upstroke and enhances thrust on the downstroke. The fins come standard with stainless steel spring straps.

  • Traditional all-rubber design provides excellent performanceApeks RK3 Vented Rubber Fins with Spring Straps

  • Come standard with stainless steel spring straps

  • Custom designed buckle holds spring straps in optimum position

  • Custom buckle is attached with stainless steel nut and bolt

  • Short wide blade provides maximum forward thrust while maintaining great maneuverability.

  • Vented blade design reduces resistance on the upstroke and enhances thrust on the downstroke

  • Two large grommet holes on either end are designed to fit most carabineers

  • 3 sizes available: Medium (7-9), Large (9-11) & Super (12+)

  • Available colors: Black, Orange, Yellow, and White


Apeks RK3 Fins | Designed in collaboration with the US military and renowned for outstanding performance and reliability, the Apeks RK3 is a rugged thermoplastic rubber fin featuring an over-sized foot pocket to accommodate drysuit boots and a spring strap for easy donning and doffing. The RK3 is available in three sizes: Medium, Regular and Super.



Fin Material

Thermoplastic Rubber


Medium - 19.15in L x 9in W
Large - 21.5in L x 9.5in W
Super - 22.5 in L x 9.5in W


Medium w/ Spring Straps - 2.25 lbs
Large w/ Spring Straps - 2.75 lbs
Super w/ Spring Straps - 2.75 lbs


All Sizes with Spring Strap - Slightly Positive

Buckle Attachment

316 stainless steel nut and bolt

Foot pocket

Open heel design

Spring straps




Orange and Yellow are Special Order. Please allow for additional lead time.
Apeks RK3 Fins | Black Apeks RK3 Fins |  High Visibility Orange |   Apeks RK3 Fins | High Visibility Yellow | Excellent for Public Safety Diving  Apeks RK3 Fins | White

Price: $160.00

Apeks RK3 Fin Sizing Guidelines: Medium (7-9), Large (9-11), Super (12+)

Size recommendations listed with fins are for use with "standard" sole dive boots.
For use with Aqua Lung EVO 3, DUI Rockboots, or similar... add approximately two shoe sizes.

Replacement Straps
  Spring Straps w/ Heal Pad, (Pair)
For Rocket II, Super Rocket II, and RK3 Fins

Price: $45.00



Related Items
Drysuits Masks Master Knife
Rocket Fins Snorkels Wetsuit Boots

While these are excellent reference materials, in no way should this information be considered a replacement for proper training for the specific type of diving in which you plan to participate.