Model HP8700 is a single-stage brass regulator that is designed to operate on ultra high-pressure cylinders up to 7500 psig. The Model HP8700 is suitable for high pressure testing charging accumulators and pressurizing struts for hydraulic systems and aircraft/heavy equipment.. This model features a brass body bonnet and dual scale (psig/bar) gauges ergonomic plastic knob for improved grip and ease of adjustment of the delivery pressure, and one-piece encapsulated seat that is design with internal filter and CTFE (Kel F) seat. It has a 1/4" NPT outlet with stainless steel 1/4" tube fitting.