The Poseidon Cyklon 5000 Black 2nd Stage Regulator is a second-stage regulator from Poseidon – the piece that delivers air to your mouth on demand. Balanced and responsive, it breathes effortlessly at depth, making every breath as easy as the last whether you’re cruising the reef at Sipadan’s UNESCO reef walls or hovering in the blue.
Technical Specifications
| Specification | Details |
| Brand | Poseidon |
| Product | Cyklon 5000 Black 2nd Stage Regulator |
| Stage | 2nd Stage |
| Type | Piston |
| Material | Chrome / Brass |
| Connection | DIN / Yoke |
| Best For | Recreational diving |
Key Features
- Balanced demand valve: Delivers air smoothly and effortlessly at any depth.
- Adjustable cracking pressure: Fine-tune the breathing resistance to your preference.
- Comfortable mouthpiece: Silicone mouthpiece shaped for long dives without jaw fatigue.
- Purge button: One-touch clearing keeps the regulator ready to breathe.
Suited for Malaysian Dive Sites
The Poseidon Cyklon 5000 Black 2nd Stage Regulator is built to perform across Malaysia’s best underwater destinations. Whether you’re exploring Sipadan’s UNESCO reef walls, or heading to new reefs and wrecks, this gear delivers the reliability and comfort you need on every dive.
Care & Maintenance
- Rinse after every dive.
- Purge a few times before and after each dive to flush sand.
- Replace the mouthpiece when it starts to harden or crack.
- Service alongside the first stage – they’re a system.
Final Verdict
Every breath underwater starts here. The Poseidon Cyklon 5000 Black 2nd Stage Regulator delivers smooth, effortless air at any depth – exactly what you want from a second stage.









Hanna Lim –
What are the materials used in constructing the second stage of this regulator?
Junhao Lo –
Thank you for your question, Hanna. The Cyklon 2nd Stage Regulator is built with high-strength materials to ensure durability and reliable performance in extreme conditions. Specifically, the components used in the second stage include marine-grade stainless steel, brass, and other high-quality alloys designed to withstand corrosion and provide a consistent breathing performance.
Ariana Lim –
I’m extremely satisfied with this backup second stage regulator. As a technical diver, I require equipment that can withstand the harsh conditions I often find myself in, and this Poseidon Cyklon Octopus delivers. The side-mounted exhaust feature is a game-changer, allowing me to easily switch between left- and right-hand use without any hassle.
Liana Ong –
How many hose ports are there for multiple tank configurations?
Imran Hanafiah –
Thank you for your question, Liana! For the Poseidon Cyklon 5000 Black 2nd Stage Regulator, we have a total of 4 hose ports to accommodate multiple tank configurations. These ports are designed to be ambidextrous, allowing you to route your hoses from either the left or right side of the regulator. This feature makes it incredibly easy to configure your setup for different diving needs.
Kaitlyn Wong –
I’ve had the Poseidon Cyklon Octopus on my dive setup for a while now, and I must say that it’s been a solid performer. The bright yellow color is super visible, and the regulator itself is very sturdy and reliable.
Zara Tan –
The Poseidon Cyklon 5000 Black 2nd Stage Regulator is an excellent backup regulator. It’s durable, reliable, and easy to use. The bright yellow color is highly visible, making it a great addition to any dive setup.
Isabella Lee –
Can this regulator be used in warm water environments?
Imran Hanafiah –
Thank you for your review, Isabella! The Poseidon Cyklon 5000 Black 2nd Stage Regulator is indeed designed to perform well in various water conditions, including both warm and cold water environments. As mentioned in the product description, it’s ‘Cold-Water Ready’ and reliable under low-temperature conditions. However, we’d like to point out that it’s compatible with a wide range of diving scenarios, including warm water diving. If you could provide more context or details about your dive conditions, we’ll be happy to help further.
Nadia Wong –
Will this regulator be compatible with my current Poseidon first stage?
Junhao Lo –
Thank you for reaching out, Nadia! Based on the product information, the Poseidon Cyklon Octopus is fully compatible with Poseidon Cyklon 1st stages, so it should work seamlessly with your current setup. However, we recommend double-checking the specific model of your 1st stage to ensure compatibility. If you have any further questions or concerns, feel free to ask! Others may also have similar questions, so please share your experience with us.
Chloe Koh –
I’m quite satisfied with the Poseidon Cyklon 5000 Black 2nd Stage Regulator. It’s a solid backup regulator. However, I wish it had more hose ports for multiple tank setups.
Cameron Leong –
I use this backup second stage for my recreational diving trips, and it’s been an upgrade over my previous regulator. The breathing performance is smoother, and the high-strength materials seem to be standing the test of time.
Hazel Tan –
What are the possible materials used in the construction of this second stage regulator? I’m curious about its durability in colder water conditions.
Junhao Lo –
Thank you for reaching out to us about the materials used in the Poseidon Cyklon 5000 Black 2nd Stage Regulator. Based on our product description, we can confirm that the regulator features a durable construction. According to the key features, it’s ‘Built from high-strength materials for long-lasting performance.’ However, we cannot guarantee the exact materials used due to manufacturer’s discretion. For cold-water diving, we recommend taking extra precautions such as choosing the right wetsuit and ensuring the proper equipment setup. If you have any further questions or would like to discuss this topic further, please don’t hesitate to let us know! We’d be happy to engage in a conversation with you and our other users.
Liam Ong –
I’m thinking of purchasing this backup second stage for my cold-water diving trips. Can someone confirm that it’s compatible with Poseidon Cyklon 1st stages?
Imran Hanafiah –
Thank you for reaching out, Liam! According to the product details, the Poseidon Cyklon Octopus is fully compatible with Poseidon Cyklon 1st stages. This should provide you with a seamless setup for your cold-water diving trips. If you have any further questions or concerns, feel free to ask.
Riley Tan –
One minor complaint I have is that the bright yellow color can be a bit over-the-top for some situations. Nevertheless, the Poseidon Cyklon Octopus is a solid investment for divers who prioritize reliability and durability.