The Apeks WTX D-40 Wing Single Tank is a streamlined donut-style buoyancy cell designed for divers who want stable trim, modular versatility, and premium construction. Originally developed for technical diving, single-cylinder wings are now widely used by recreational divers thanks to their continuous loop air cell design that prevents dramatic air shifts underwater. The D-40 allows a cylinder to nest securely inside the wing, promoting improved balance and profile in the water. Built to integrate seamlessly with the Apeks WTX harness and backplate system, this wing offers flexible configuration options to suit a wide range of diving styles.

Apeks WTX D-40 Wing Single Tank Key Features:

• Donut-style single cylinder wing: Continuous loop air cell improves underwater stability and trim.
• Modular WTX compatibility: Pairs with Apeks harnesses, plates, and accessories for a custom setup.
• K-style inflator: Brass button inflator with low-profile 16” oval hose.
• Inflator safety cable: Prevents hyper-extension for added durability.
• Offset inflator position: Positioned off-centre to avoid interference with regulator first stage.
• Low-profile dump valve: Flat valve located on the lower front-left side for controlled gas release.
• Large drainage system: Two oversized drain grommets plus centre mesh drain panel.
• Cylinder nesting design: Allows tank to sit deeper inside the wing for improved balance.

Construction & Materials:

• Exterior: 1000D Armorshield Cordura for high abrasion resistance.
• Inner air cell: 22mil (.022) thick black urethane bladder.
• Zipper: Heavy duty YKK #10 plastic zip and slide.
• Design & Manufacture: Designed by Apeks using premium materials for long-term reliability.

A durable, high-quality single tank wing delivering balanced buoyancy and modular flexibility for both recreational and technical diving configurations.