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When humans or animals breath out
45 degrees
It is the perfect tool for both new and experienced canners
cushioned handles for comfort
all faster and with less effort than other methods
Lomanco® 905W Series 900 Vari Pitch Adjustable Louver Vent, White BF15 When humans or animals breathThe Lomanco Series 900 Adjustable Louver fit roof pitches of 2 1 2 12 to 9 12. The ingenious design actually forces the louver blades to pivot, changing angle as the unit is adjusted. This permits maximum air flow capacity while assuring optimum protection from the weather. Constructed entirely of heavy gauge aluminum Adjusts from 2. 5 12 to 9 12 roof pitch 8" x 8" perma coated screen 1 1 2" wide mounting flange Pivoting blades provide maximum weather