The Rainbow‑PVD SPG 52 mm is a high‑precision submersible pressure gauge engineered for divers who demand accuracy, durability, and standout aesthetics. Featuring a 300 bar scale, 230 bar working pressure, and a striking Rainbow PVD coating, this head‑only SPG combines reliable performance with a premium finish designed for long‑term use in demanding underwater environments.
Premium Rainbow PVD Coating
The Rainbow PVD (Physical Vapour Deposition) finish provides exceptional surface hardness, corrosion resistance, and abrasion protection. Unlike painted or anodised coatings, PVD bonds at a molecular level, creating a long‑lasting surface that resists scratches, saltwater exposure, and impact.
This coating also gives the SPG a distinctive iridescent appearance, making it a visually striking addition to any regulator setup.
Wide 300 Bar Scale for Accurate Gas Monitoring
The SPG features a 300 bar scale, offering clear, precise readings suitable for both recreational and technical diving. The high‑contrast markings ensure excellent visibility in low‑light conditions, supporting confident gas‑management decisions throughout the dive.
230 Bar Working Pressure
Engineered for safe operation at 230 bar working pressure, the gauge delivers stable, reliable readings under typical cylinder fill conditions. Its mechanical movement ensures dependable performance without reliance on electronics.
Compact 52 mm Diameter
The 52 mm face provides excellent readability while maintaining a compact profile that integrates seamlessly into consoles, stage‑bottle rigs, or custom hose setups. Its size strikes the ideal balance between visibility and streamlined equipment configuration.
Head‑Only Design for Customisation
As a head‑only SPG, this model allows divers and technicians to pair it with preferred hoses, boots, or mounting systems. This flexibility makes it suitable for:
- Technical diving rigs
- Stage and deco bottles
- Custom hose routing
- Minimalist recreational setups
Built for Harsh Underwater Conditions
The gauge is designed to withstand:
- Saltwater exposure
- Impact and abrasion
- Cold‑water compression
- High‑pressure fluctuations
Its rugged construction ensures long‑term reliability, making it a trusted choice for dive centres, instructors, and technical divers.
