LSP Rhino™ Series All-Brass Regulators.All Rhino regulators carry a 10-year warranty. LSP Rhino™ oxygen pressure regulators come with a shock-resistant virtually unbreakable low-profile gauge. The gauge is protected by an aluminum shroud, which is integral to the regulator body and is designed to prevent damage or contamination. All Rhino regulators carry a 10-year warranty. 0-25 lpm, with gauge, hose barb outlet, low profile gauge featuring shroud design.