Hollis 500 SE - DC7 Regulator Regulator “Inner Liner” is a silk

“Inner Liner” is a silk weave polyester offering the optimum in comfort and softness with easy donning and doffing

An EFR Instructor rating is required to become a PADI Instructor

Titanium or 316 Stainless Steel

Prevents Ghost Images on Viewing Area of Lens

Our instructors are passionate about diving and will ensure that your first underwater experience will be a fun and safe experience

Hollis 500 SE - DC7 Regulator Regulator “Inner Liner” is a silkThis products Overview The new 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, we have perfected the original "lever servo valve" we designed 35 years ago. Overbalanced diaphragm first stage also provides ideal hose routing for both backmount and sidemount users and optimum performance regardless of depth. specifications