QUESTION: Which is longer and covers a longer slide: this model 61391 or the 37594 which has shorter base width but longer rail length, slightly longer slide, but smaller seat. I want the longest model with the longest slide, and preferably a large cutout seat. ANSWER: Both of the extra long models come with similar specifications including base width and slide distance. For more discussions, options and details about the product, or to order the product, please click here Extra long sliding transfer bench with center cut-out molded seat for extra long transfer distance. Very easy to assemble, no tools required. Bench slides for easy mobility. Height adjustable in 1/2" increments. Splayed leg configuration for added stability. Plastic model seats have a larger seating area and come with a Shower Head Holder. Seat and backrest have a non-slip texture finish. Removable center piece switching to cut out seats. Safety belt is included. Backrest can be installed on either side of seat. Durable lightweight aluminum frame. Secured locking mechanism for both patient transfer and while in the tub/shower. Come with double safety locks. Seat Width: 19" Seat Depth: 14.5" Seat Height: 18.75" - 23" Actual Slide: 23.75" Side Rail Length: 36.75" Base Width: 46.25" - 47.5" Base Depth: 18.75" - 20.25" Back Height: 13.25" Leg Length: 9.625" Required Clearance: 15" - 18.5" Weight Capacity: 300 lbs.