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📐 Technical Specifications — S3M Synchronous Timing Belt
up to 220 lbs — requires minimum 5" clearance above door to ceiling
⚠️ Size Selection Tip: Select your perimeter by matching the tooth count to your pulley and center-distance calculation
"name": "How do I convert the millimeter sizes to inches
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12" Shutter Exhaust Fan – 1000 CFM High‑Speed Wall Mount Attic Fan for Garage, Greenhouse, Shed, Workshop Eye Bolts 📐 Technical Specifications — S3M12" Shutter Exhaust Fan 1000 CFM HighSpeed Wall Mount Attic Fan Is your garage a sauna in summer? Does your greenhouse trap stifling heat, or your workshop feel stuffy even with the door open? The 12" Shutter Exhaust Fan moves a massive 1000 cubic feet of air per minute enough to completely refresh a typical twocar garage every minute. Mount it on a wall, cut a hole, plug it in, and let the builtin AC motor do the rest. The automatic shutters open
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