You can purchase a new replacement housing [https://www.amazon.com/GoPro-AHDRH-301-Replacement-Housing/dp/B009QXFFDO|HERE]
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You can purchase a new replacement housing [https://www.amazon.com/Suptig-Replacement-Waterproof-Protective-Underwater/dp/B01G77CQDS/ref=pd_lpo_vtph_421_bs_t_1?_encoding=UTF8&psc=1&refRID=KQZKYT0Q0CPB0W60VNFS|HERE]