
Dortec Wooden Door Hardware Concealed Door Closer Power Adjustable. Adjustable Closing Speed: Features adjustable closing and latching speed for precise control. High Durability: Piston and spindle heat-treated; tested for 500,000 cycles. Versatile Application: Suitable for market, fire exits, home, hotel, office, hospital, and school. Non-handed Installation: Supports non-handed installation for flexible mounting options. 5-Year Warranty: Comprehensive 5-year guarantee covers all DORTEC products. Online Support: Professional online after-sales service available for assistance. Custom Branding: Supports custom logo and brand printing for orders over 1000 pcs. Multiple Size Options: Available in three door weight ranges: 25-45KG, 45-65KG, 65-85KG.