Hollis 500SE + DC7 Regulators
Old School. New Tech. The 500SE utilizes a servo controlled valve to provide precision airflow and unparalleled performance for both air and trimix divers in a side exhaust configuration. To achieve this, Hollis has perfected the original “lever-servo valve” we designed 35 years ago. Overbalanced diaphragm first stage also provides ideal hose routing for both Read more about Hollis 500SE + DC7 Regulators[…]