The Apollo Bio Micro Filter 3/8″ is a second-stage regulator from Apollo – 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 Perhentian’s crystal-clear waters or hovering in the blue.
Technical Specifications
| Specification | Details |
| Brand | Apollo |
| Product | Bio Micro Filter 3/8″ |
| 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 Apollo Bio Micro Filter 3/8″ is built to perform across Malaysia’s best underwater destinations. Whether you’re exploring Perhentian’s crystal-clear waters, 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 Apollo Bio Micro Filter 3/8″ delivers smooth, effortless air at any depth – exactly what you want from a second stage.




Jennifer Lim –
The filter fits perfectly onto my first stage and I noticed the air tasted much cleaner during my last few dives. The compact size is a bonus because it doesn’t make my setup bulky. Maintenance was straightforward, but I wish there were clearer instructions included.
[email protected] –
Thank you for your feedback, Jennifer. We’re glad to hear the filter improved your air quality and was easy to maintain—your note about clearer instructions will be shared with our team for future improvements.
Ravi Menon –
Can I use this filter with my existing rental regulators when traveling overseas? I want to make sure it’s compatible before I purchase.
[email protected] –
Hi Ravi, the Apollo Bio Micro Filter 3/8″ is compatible with most regulators that use a standard 3/8” low-pressure hose. We recommend checking with your rental provider to confirm that their equipment uses this standard connection before traveling.
Sharon Tan –
I’ve been using this filter for a few months and it’s held up very well, even after multiple saltwater dives. No corrosion or leaks, and the air has stayed consistently fresh. A great investment for anyone serious about dive safety.
Imran Hanafiah –
Thank you, Sharon, for your positive review and sharing your experience. We’re happy to hear the filter’s durability and performance have met your expectations in various diving conditions.