Smoke Cartridges - 10/Package julyfourth Super-dense neoprene keeps cold/wet out

Super-dense neoprene keeps cold/wet out and warm/dry in

The flap has an adjustable counterweight to regulate airflow

With bright pink accents and serious protection

This full zipper jacket has two pockets in the front and thumbholes in the sleeves

3 mm chrome metal grill

Smoke Cartridges - 10/Package julyfourth Super-dense neoprene keeps cold/wet outIdeal for testing airflow or finding leaks in exhaust air systems, White Smoke Cartridges from Regin HVAC Products is safe, economical and reliable. This is the best tool for testing duct systems, providing a visual display of airflow for balancing or leak detection in exhaust air systems, smoke stacks, chimneys, or fume hoods. Ideal for negative air pressure testing, smoke alarms, fire drills, film and photography, verification of high efficiency air