The Hollis OPRV (Over Pressure Relief Valve) is a must-have accessory for first stage regulators. Designed to protect your system from excessive pressure buildup, it provides an added layer of safety and reliability for divers using high-performance setups.

• Essential Regulator Protection – Automatically vents excess pressure to safeguard your first stage.
• Durable Construction – Built from high-quality materials for long-lasting performance.
• Compact and Lightweight – Easy to install without adding bulk to your regulator setup.
• Universal Compatibility – Designed to work with a variety of regulator systems.
• Trusted Hollis Design – Engineered with the same quality and reliability divers expect from Hollis gear.