The Spare Air Model 300 – Standard is a second-stage regulator from Spare – 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 Payar Marine Park’s gentle reefs or hovering in the blue.
Technical Specifications
| Specification | Details |
| Brand | Spare |
| Product | Air Model 300 – Standard |
| 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 Spare Air Model 300 – Standard is built to perform across Malaysia’s best underwater destinations. Whether you’re exploring Payar Marine Park’s gentle reefs, 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 Spare Air Model 300 – Standard delivers smooth, effortless air at any depth – exactly what you want from a second stage.




Wei Ming Tan –
Used the Spare Air Model 300 during my recent dive trip to Tioman, and it really gave me peace of mind. It’s lightweight and didn’t get in the way at all, plus super easy to refill from my main tank. I haven’t had to use it in a real emergency yet, but the build feels solid and reliable.
Junhao Lo –
Thank you, Wei Ming, for your detailed feedback! We’re pleased to hear that the Spare Air Model 300 provided the reassurance you needed on your dive trip. If you ever have questions about maintenance or refills, our team is always here to support you.
Dinesh Kumar –
Can this be used for deeper dives, or is it just for shallow emergencies? Also, how long does the air supply last at depth?
[email protected] –
Hi Dinesh, thanks for your question. The Spare Air Model 300 is designed primarily as an emergency backup for any depth within recreational limits, but the actual number of breaths decreases as depth increases due to pressure. At depth, it’s meant to give you sufficient time to ascend safely rather than support extended stays.
Nurul Hassan –
I like how visible the yellow color is and the holster makes it easy to grab quickly. Slightly heavier than I expected, but once it’s attached, I hardly notice it. Overall, a good addition to my safety gear.
Junhao Lo –
Thank you, Nurul, for your honest review! We’re glad to hear the visibility and holster design work well for you. If you need tips on adjusting for weight balance, feel free to reach out to our support team anytime.