This is a product for business contractors.
Features: Rolled in pipes for welding corners. Alignment is extremely easy.
Specifications: Nominal diameter (A): 3.1 inches (80 mm); Nominal diameter (B): 0.1 inches (3 mm); Inner diameter (in): 7.1 inches (90.0 mm); Outer diameter (in.): 7.1 inches (180 mm); Thickness: 0.5 inches (14 mm); Bolt hole diameter: 0.7 inches (4 mm); Weight: 3.7 lbs (1 kg); JIS B2 lbs (1 kg); Working pressure: 1 lbs (1.7 lbs (1 kg). Country of Origin: China; Weight: 3.9 lbs (1.97 kg); Manufacturer Model Number: G5SOPF80A; Code Number: 160-7090