
Marine Steel Chimney/Funnel Closeable Shutter/ Louver Aluminum Watertight Fixed Louver Shutter Window with BV Certificate. Multi-Certification Compliance: Certified by RINA, RS, NK, LR, KR, CCS, GL, DNV, and ABS for global marine standards. Customizable Dimensions: Custom sizes available within D=200mm-450mm to fit specific vessel requirements. Watertight & Weatherproof: Ensures wind and rain tightness, preventing water, dust, and debris entry. Fireproof Options: Available in A0/A60 class fireproof ratings for enhanced safety compliance. Premium Material Choice: Constructed from Aluminum, Steel, or 316 Stainless Steel for corrosion resistance. 1-Year Warranty Coverage: Comprehensive 1-year warranty and after-sales service for peace of mind. Precision Ventilation Control: Adjustable louvered boards regulate airflow, temperature, and air quality. Rigorous Quality Testing: Every unit undergoes pressure tests and durability checks before shipment.