This is the Highland 2.5" Brass & Glass SPG Submersible Pressure Gauge Features: Full-size and robust quality pressure gauge Nickel plated brass housing Tempered glass lens Ready to mount directly to high pressure hose Airspool included with Viton o-rings Luminescent gauge face Wide 270° sweep from 0 to 5000 psi Available in psi or bar Bright, white face - easy to read Built-in over pressure relief for safety HP hose is not included Manufactured in Italy Looking for a durable scratch-resistant pressure gauge as a replacement or a back-up for your save-a-dive kit? XS Scuba's triple nickel-plated brass cased with tempered glass lens pressure gauge is what you need. Gauge reads from 0 to 5,000 psi or 0 to 350 bars, has a simple unobstructed white-faced dial for easy reading."