Audited Supplier 
The HT-903 Diving Helmet consists of two main parts, the helmet/helmet rim and the collar plate/collar rim fitted with a Model 351/451 rebreather to provide the diver with comfortable breathing. Stainless steel shell. The HT-903 is also suitable for diving operations in polluted waters with low breathing resistance for smoother breathing. Chrome brass collar plate with locking pin for better protection of the diver from the bottom of the helmet. The interior of the helmet is equipped with an adjustable jaw support. Helmet communication is available in both bare wire and watertight connectors.
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