Zen vs Ultra: Walk-In Tub Comparison
The Ella Zen and the Ella Ultra side by side, using the actual dimensions from the spec sheets and technical drawings rather than nominal sizes. The profiles cover therapy packages, videos and installation notes for each tub.
VS
| Door style | S-shape inward-swing acrylic door | Aluminum-framed removable inward-swing door |
| Door swing | Inward | Inward |
| Seats | One bather | One bather |
| Actual size (W x L x H) | 29 1/2" x 52" x 37.5" | 29.5" x 52.125" x 40" |
| Seat | 20" x 15" | 22" |
| Net weight | 210 lb | 205 lb |
| Shipping weight | 310 lb | 230 lb |
| Crate size (W x L x H) | 32" x 54" x 49" | 32" x 54" x 50" |
| Water to overflow, unoccupied | 65 gal | 75 gal |
| Water with a bather (typical) | 30-50 gal | 35-55 gal |
What is different
- Both are 29 1/2 in. wide.
- The Ultra is 0 1/8 in. longer than the Zen (52 1/8 in. vs 52 in.).
- The Ultra is 2 1/2 in. taller than the Zen (40 in. vs 37 1/2 in.).
- Door designs differ: the Zen has the s-shape inward-swing acrylic door and the Ultra has the aluminum-framed removable inward-swing door.
- To the overflow, the Zen holds about 65 gallons and the Ultra about 75, which matters for water heater sizing.
- Net weights are 210 lb (Zen) and 205 lb (Ultra).
Common questions
Which is bigger, the Zen or the Ultra?
The Ultra has the larger footprint at 29.5" x 52.125" x 40", against 29 1/2" x 52" x 37.5" for the Zen.
Do the Zen and the Ultra have the same door?
No. The Zen uses the s-shape inward-swing acrylic door and the Ultra uses the aluminum-framed removable inward-swing door, so the door guides differ.
How much water do the Zen and the Ultra hold?
To the overflow when empty, the Zen holds about 65 gallons and the Ultra about 75 gallons; with a bather the typical ranges are 30-50 and 35-55 gallons. Size your water heater to the larger figure.
Read the full profiles
Add a third model to this comparison → · Dimensions by model · Which door does my tub have?
Want help choosing?
Your Ella dealer or the team at (800) 480-6850 can walk you through both tubs for your space and needs.
Videos