4-Inch Blue Swivel Plate Caster/ Brake Torches & Welding The louvers open and close

The louvers open and close quietly while air is flowing through the vent

Copper Sulfate

The metal seed ports protect the 16 inch tube against squirrel damage

and is paintable with latex paint within minutes

4-Inch Blue Swivel Plate Caster/ Brake Torches & Welding The louvers open and close4", Blue, Elastic Rubber, Swivel Plate Caster With Full Lock Brake, 132 Lb Capacity, Non Marking Tread, Braking System Locks Both The Wheel And The Swivel, Superior Elastic Soft Rubber Wheel That Allows For Easier Rolling Over Obstacles & Provides Important Noise Reduction Where Required, Abrasion Resistant & Extremely Durable, Metal Thread Guards, Bulk.