Scuba Regulators – First Stage Only

Explore our collection of first stage regulators, designed to provide reliable, high-performance air delivery from your scuba tank. The first stage reduces high-pressure air from the cylinder to an intermediate pressure that is safe and consistent for breathing through a second stage regulator. Ideal for recreational, technical, and cold-water diving, these first stages ensure optimal reliability, durability, and compatibility with a variety of diving setups.

Why Choose a First Stage Regulator?

• Consistent airflow: Provides stable intermediate pressure for smooth breathing underwater.
• Durability: Constructed from high-quality materials, including chrome-plated brass and corrosion-resistant alloys.
• Versatility: Compatible with most second stage regulators, BCD inflators, and octopus setups.
• Cold-water ready: Environmental seals prevent freezing in low temperatures.
• Ease of maintenance: Modular design allows easy servicing and part replacement.

Key Features to Consider

• Balanced vs. unbalanced design for airflow consistency
• Piston or diaphragm construction for durability and performance
• High-flow ports for connecting second stages, inflators, and gauges
• Environmental sealing for cold-water diving
• Compact and lightweight designs for travel and comfort

Who They’re Best For

Recreational divers: Reliable first stage for everyday dives.
Technical divers: High-performance options for deep, cold, or technical dives.
Travel divers: Lightweight and compact for easy transport.
Cold-water divers: Environmentally sealed first stages prevent freezing and ensure consistent performance.

Buying Tips

1. Determine diving conditions: Cold-water divers should choose environmentally sealed first stages.
2. Choose a balanced design: Provides consistent intermediate pressure at any tank pressure.
3. Check compatibility: Ensure first stage works with your chosen second stage and BCD inflator.
4. Consider maintenance: Select models with available parts and easy servicing procedures.
5. Evaluate port configuration: More ports allow flexibility for additional hoses and gauges.

Maintenance & Care

• Rinse thoroughly with fresh water after every saltwater dive.
• Flush ports to remove sand, salt, and debris.
• Store in a cool, dry place away from sunlight.
• Inspect O-rings and connections regularly for wear or damage.
• Schedule annual professional servicing for optimal performance and safety.

Frequently Asked Questions

What is a first stage regulator?

The first stage regulator attaches to the tank valve and reduces high-pressure air to a safe intermediate pressure for the second stage and BCD inflator.

What is the difference between balanced and unbalanced first stages?

Balanced first stages provide consistent intermediate pressure regardless of tank pressure, while unbalanced first stages may deliver less consistent airflow as the tank empties.

Do first stage regulators require special maintenance?

Yes, regular rinsing, inspection of O-rings, and annual professional servicing are required to maintain optimal performance and safety.

Can a first stage work with any second stage?

Most modern first stages are compatible with a wide range of second stages, but always confirm compatibility before purchase.

Are first stage regulators suitable for cold-water diving?

Yes, environmentally sealed first stages prevent freezing and ensure smooth performance in low-temperature diving conditions.