Scuba Diving Regulator Set designed for Recreational Divers in Cold Waters

The Apeks ATX40 DS4 + ATX40 Octopus + gauge + regulator bag set is a complete, ready-to-dive regulator package designed for divers exploring cold and demanding waters. It combines proven technology, high reliability, and smooth breathing performance to ensure safety and comfort underwater.

This set includes everything you need – a high-performance first and second stage, a backup octopus, a precise pressure gauge, and a practical bag for transport and storage. It’s an ideal choice for divers looking for a solid, all-in-one solution for cold and temperate water diving.

Regulator ATX40/DS4 + Octopus ATX40

The Apeks ATX40 + DS4 regulator set is designed for recreational divers exploring cold and temperate waters.

It delivers:

• stable low-temperature performance
• smooth and natural breathing
• durable construction
• outstanding reliability

DS4 First Stage – Over-Balanced Diaphragm with Dry Chamber

The DS4 first stage features:

• over-balanced diaphragm design
• dry chamber protecting against cold water exposure
• stable intermediate pressure at depth
• high resistance to freezing

DS4 first stage features – 4 LP ports / 1 HP port, ensuring flexible equipment configuration.

The dry chamber isolates internal components from cold water, increasing reliability in low temperatures.

ATX40 Second Stage – Smooth and Controlled Breathing

• pneumatically balanced mechanism
• Venturi control
• large purge button
• black 75 cm hose

Breathing remains effortless and predictable throughout the dive.

ATX40 Octopus – Added Safety

• same proven technology as the primary second stage
• yellow 90 cm hose
• easy access and operation

A reliable backup regulator enhancing underwater safety.

Set Specifications

• designed for cold and temperate waters
• DS4 first stage – 4 LP ports / 1 HP port
• 75 cm primary hose
• 90 cm octopus hose
• total set weight: 1.6 kg

Why Choose Apeks ATX40 + DS4?

• reliability in cold waters
• stable performance at all recreational depths
• breathing comfort
• durable construction
• renowned brand with years of experience

This regulator is designed for divers who expect stable, safe, and proven equipment.

Apeks Submersible Pressure Gauge (SPG) with Hose 

The Apeks Pressure Gauge with hose is one of the most trusted measuring instruments in the diving world. Manufactured by the British brand famous for top-tier regulators, this SPG offers unparalleled precision in tank pressure monitoring and exceptional resistance to harsh underwater conditions. The nickel-plated brass housing and tempered glass window make this device virtually indestructible, ideal for both recreational and technical divers. The clear, luminescent dial allows for easy reading even in low visibility or during night dives.

Key Benefits and Features

• Exceptional Durability: The nickel-plated brass case protects the precision movement from impacts and corrosion.
• Clarity in All Conditions: The white dial with phosphorescent markings provides excellent underwater contrast.
• Safety First: Features a tempered glass window and a pressure relief valve (blow-out plug) on the back of the casing for emergency venting.
• High Operating Range: Scaled up to 360 bar to monitor gas supply in any configuration.
• Complete Set: Includes a high-quality high-pressure (HP) hose of standard length, ready to be connected to your first-stage regulator.

Technical Specifications

Usage and Installation Instructions

Screw the pressure gauge hose into the high-pressure port (marked as HP) on the first-stage regulator. Before installation, ensure the O-ring on the hose thread is clean and undamaged. Tighten with a wrench, but avoid using excessive force. When opening the cylinder valve, always hold the gauge dial facing away from you for maximum safety.

Maintenance and Care

After every dive, rinse the gauge and hose thoroughly in clean, fresh water. Avoid hitting the device against hard equipment or the seabed. Regularly inspect the HP hose for any signs of bubbling or fraying. It is recommended to have the gauge serviced along with your regulator set annually or every 100 dives at an authorized Apeks service center.

Apeks Regulator Bag

Protect your life-support equipment with the professional Apeks Regulator Bag. This large, heavy-duty padded bag is engineered specifically for divers who demand superior protection for their complex regulator setups.

Key Benefits & Features

• Superior Protection: High-density padding shields your sensitive gauges and second stages from mechanical shocks.
• Generous Capacity: Spacious enough to hold a complete Sidemount or Twinset regulator configuration with ease.
• Durable Construction: Built with premium, abrasion-resistant materials designed for the harsh diving environment.
• Moisture Management: Features mesh drainage and ventilation to help prevent corrosion during storage.

Technical Specifications

User Manual

1. Coil your regulator hoses into loose circles, ensuring there are no kinks near the first stage.
2. Place the regulators inside the bag, positioning the gauges in the center for maximum padding.
3. Close the zippers carefully, making sure no hoses or mouthpieces are caught.
4. Use the included shoulder strap for easy transport to the dive site.

Maintenance & Longevity

To ensure your Apeks bag lasts for years, rinse any salt residue with a damp cloth. If the bag gets soaked with salt water, hand wash it in fresh water and let it air dry completely out of direct sunlight. Periodically clean the zippers to prevent salt crystallization.

FAQ

Will this bag fit a long hose configuration?

Yes, the internal volume is optimized for technical diving setups, including long hoses and backup regulators.

Does the bag have a shoulder strap?

Yes, the bag comes with an additional shoulder strap.