Secure your solar modules with confidence using the GSE MID CLAMP H21 BLACK ART100744. Also referred to as a double clamp, this heavy-duty component is engineered specifically to anchor two adjacent solar panels onto a GSE in-roof solar mounting system. The H21 variant is designed specifically for modules with a 40mm frame thickness, providing reliable mechanical grip and wind-uplift resistance. Featuring a professional, low-profile black finish, it visually integrates with dark-framed PV panels to ensure a clean, seamless look across the entire roof integration.