Open channel for wire containment / management. Bracket allows glass to sit 100+mm above valley of corrugation. Fix bracket into sheeting only - allowing module placement anywhere on the roof. Slotted top hole offers over 25mm of E - W adjustability. PVKIT 2.0 compatible. Factory applied EPDM for no mess waterproofing. Fits corrugated profiles common in Australia. Compatible with corrugated profiles 19 - 22+mm tall and 76mm crest to crest