Master Spas Therapool D — a swim spa built around exercise: close to 8 by 11 feet, 60 inches deep, with more than 50 jets, three high-performance flow-stream jets for resistance swimming and the H2Xercise fitness system (rowing and strength) as standard. Waterline LED lighting, a waterfall and stainless steel jets. The lowest-priced swim spa we carry.

At a glance: 8 seats · 54 jets · 132" x 94" x 60" · Swim/therapy spa, bench seating · Certified-used

Living with it. Eleven feet is short for a swim spa — this is a therapy and fitness pool with a current, not a lap lane, and that's exactly why it fits yards the 15- and 20-footers won't. Sixty inches of depth is what makes the rowing and resistance work real. It still needs an engineered pad, a dedicated circuit and a checked delivery route.

Condition. Certified-used: stripped, tested under power, worn parts replaced, and run on our floor before listing.

New MSRP: $44,995 (manufacturer's suggested retail price when new). This is a certified-used unit — our price is the price shown.