Built-in swim spa 400-OS

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The original 42-inch (107cm) exercise pool features a totally flat bottom with a non-skid surface and a swimmer-positioning arrow. The 400-OS pool is one of the worlds finest fiberglass swimming pools - it is constructed in a one-piece design with no seams, has a uniform water depth of 42 inches (107cm) and holds 2,600 gallons (9841 l) of water. The paddlewheel-generated counter-current extends 18 inches (46cm) deep and is driven by the standard 5-hp drive system. The water circulates through the false bottom floor of the 400-OS exercise swimming pool, creating a smooth, laminar flow.