WB-N Square WB-N The WB-N Square spa can be custom built to fit any project. You have the option of jet configuration, color combination, and equipment pack. Dimension 78″ x 78″ Seating 4-5 Adults Depth 30″ Capacity 380 Gallons Dry Weight 425 lbs. Residential Square 4-5 person Spa & Hot Tub