Low Pressure Primary Dive Regulator Hose – Reliable, Flexible, and Built for Performance

The Low Pressure Primary Dive Regulator Hose is a key element in your breathing system, connecting the first stage of your scuba regulator to the second stage with consistent, intermediate-pressure airflow. Built for rugged performance, this hose is trusted by divers for its durability, smooth routing, and reliability across all environments - from recreational diving to deep tech setups.

Key Features and Benefits

Durable, Long-Lasting Construction
Built from high-quality materials to resist abrasion, saltwater exposure, and hose fatigue.
Streamlined Flexibility
Easily routes under the arm or over the shoulder, depending on your configuration, without kinking or restricting movement.
Standard Fittings for Wide Compatibility
Equipped with 3/8" male (first stage) and 9/16" female (second stage) ends, making it compatible with most scuba regulator setups.
Multiple Length Options
Available in several lengths to suit traditional backmount, long hose, and sidemount configurations.
Essential Safety Component
Ensures consistent gas delivery from your dive regulator, critical for safe breathing underwater.

Detailed Description

A well-maintained scuba regulator hose is vital for underwater breathing safety. This low pressure dive hose connects the first stage of your scuba regulator directly to your primary second stage, delivering breathing gas at intermediate pressure. It’s engineered to endure repeated use and exposure to high-stress environments while maintaining a soft, flexible profile for easy equipment handling.

Whether you're routing a 22" hose under the arm for a recreational setup, using a 40" hose for your backup second stage, or a 7-foot long hose in a technical or cave diving configuration, this scuba hose offers the versatility and durability to meet your exact needs.

The fittings are industry standard—3/8" UNF male for the first stage and 9/16" UNF female for the second stage regulator - ensuring compatibility with nearly all modern scuba regulators. Its construction resists collapse or restriction even under sharp bends, making it ideal for both streamlined and redundant gear setups.

This diving hose is an ideal replacement or upgrade for any diver looking to improve their breathing system without compromise.

Specifications

Material: High-strength rubber or braided (based on variant)
Fittings: 3/8" UNF male (first stage) and 9/16" UNF female (second stage)
Working Pressure: Rated to 500 PSI
Burst Pressure: Up to 2000 PSI
Lengths Available: 22", 24", 36", 40", 84" (7 ft) and more
Use: Suitable for recreational, technical, sidemount, and cave diving
Compatibility: Fits most standard scuba regulator systems

Upgrade your scuba setup with a dependable low pressure hose that delivers comfort, control, and confidence on every dive. Choose the right length, route it your way, and breathe easy knowing your gear is up to the task.

Halcyon offers the original purchaser a one-year manufacturers warranty against material and workmanship defects on all of its products. Beyond this standard coverage, Halcyon also offers the original purchaser two separate lifetime warranties, one covering all RF-welded seams used in the construction of MC bladders, surface signaling and lift devices, and the second covering Halcyons primary light canisters. In order to maintain both the one-year manufacturers warranty and the lifetime warranty (where applicable) the original purchaser must retain their sales receipt. Certain items, such as NiMH and SLA batteries, are covered by a 90-day conditional warranty that commences on the date of customer purchase. Following Halcyons recommended use and service guidelines provided in the manuals is essential in extending the practical lifetime of expendable items such as batteries and light bulbs. The Halcyon warranty is a global warranty. As long as the customer has a valid sales receipt from an authorized Halcyon dealer, the warranty extends to all countries and shops, regardless of where the item was purchased. Any authorized Halcyon dealer can handle warranty returns to the factory with a valid receipt. Unauthorized modifications/repairs, negligence, accidental damage, commercial use, or abuse are not covered by the warranty. Floods, leaks, punctures, and broken bulbs etc., are not covered by the warranty unless they are the direct result of a material or workmanship defect.