The new PRD3HP-ANB-C-DEF three-stage non-relieving high pressure diaphragm regulator sets an industry standard for both miniaturization and light weight. It weighs approximately 76 grams in brass. It accurately reduces very high-pressure inputs (up to 3,000 psi) down to 0 to 30 psi (and is especially suited to low pressure regulation such as 1/2 psi.) with minimal droop or rise even with wide swings in inlet pressure. The Beswick three-stage diaphragm regulator is an excellent choice if the inlet pressure will decay over time such as with hydrogen storage tanks commonly used in hydrogen fuel cell applications. Its lightweight design allows convenient in-line mounting however a 10-32 threaded panel mount option is also offered.