AC Infinity 12-Inch Stainless Steel Duct Clamps, 2-Pack

The AC Infinity AC-DCA12-2 is a pair of heavy-duty duct clamps made from marine-grade SAE Grade 316 stainless steel. A rust-resistant gloss finish helps protect against moisture, oxidation and chemical corrosion in humid grow rooms, commercial HVAC systems and industrial exhaust runs.

Each clamp uses a precision worm-drive locking system for smooth, secure tightening under high tension. The dual-drive screw head accepts both Phillips and flat-head screwdrivers, making installation straightforward across 12-inch flexible ducting, high-CFM inline fans, commercial carbon filters and backdraft dampers.

Key Features

• Large-format 12-inch capacity: Designed for 12-inch ducting and large commercial HVAC components.
• Marine-grade SAE 316 stainless steel: Provides excellent tensile strength and corrosion resistance in damp environments.
• Non-slip worm-drive mechanism: Helps prevent stripping, slipping and jamming during tightening.
• Dual-head screw compatibility: Works with Phillips and slotted flat-head screwdrivers.
• High-tension airtight sealing: Fastens large flexible ducting, carbon filters, inline fans and backdraft dampers to help prevent air leaks and odour bypass.
• Convenient 2-pack: Includes two matching 12-inch industrial duct clamps.

Technical Specifications

Real-World Applications

• Commercial cultivation ventilation: Secures 12-inch flexible ducting to high-CFM inline fans, large carbon filters and silencers in large grow tents or facility rooms.
• Industrial and home HVAC: Fastens large-diameter ductwork to roof exhaust blowers, commercial range hoods and air-handling equipment.
• Dust collection and workshop extraction: Connects 12-inch main trunk hoses to industrial dust collectors, vacuum systems and workshop air-filtration lines.