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Big4One vs Big4Two: Walk-In Tub Comparison

The Ella Big4One and the Ella Big4Two 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.

Ella's Bubbles Big4One walk-in tub — Big4One33 1/8" x 66" x 39.5"

Ella's Bubbles Big4Two walk-in tub — Big4Two36" x 80" x 40"

	Big4One	Big4Two
Estilo de puerta	U-shape outward-swing door	U-shape outward-swing door
Apertura de la puerta	Outward	Outward
Asientos	Un bañista	Dos bañistas
Tamaño real (An x L x Al)	33 1/8" x 66" x 39.5"	36" x 80" x 40"
Asiento	24" x 21 1/4 in.	22" and 24"
longitud interior	58 in.	37 3/8 in. (chart)
Del asiento al rebosadero (profundidad de inmersión)	22 in.	19 1/4 in.
Del asiento al reposapiés	17 in.	17 in.
Reposapiés	20 W by 17 L	no aparece
Peso neto	271 lb	328 lb
Peso de envío	400 lb	531 lb
Tamaño del embalaje (An x L x Al)	36" x 68" x 49"	38" x 82" x 50"
Agua hasta el rebosadero, sin ocupante	127 gal	145 gal
Agua con un bañista (valor habitual)	75-100 gal	85-135 gal

Qué la hace diferente

The Big4Two is 2 7/8 in. wider than the Big4One (36 in. vs 33 1/8 in.).
The Big4Two is 14 in. longer than the Big4One (80 in. vs 66 in.).
The Big4Two is 0 1/2 in. taller than the Big4One (40 in. vs 39 1/2 in.).
They share the same door design: u-shape outward-swing door.
The Big4Two seats two bathers; the Big4One is a single-seat tub.
To the overflow, the Big4One holds about 127 gallons and the Big4Two about 145, which matters for water heater sizing.
Net weights are 271 lb (Big4One) and 328 lb (Big4Two).

Common questions

Which is bigger, the Big4One or the Big4Two?

The Big4Two has the larger footprint at 36" x 80" x 40", against 33 1/8" x 66" x 39.5" for the Big4One.

Do the Big4One and the Big4Two have the same door?

Yes. Both use the u-shape outward-swing door, so the same operation, seal and latch guides apply to either tub.

How much water do the Big4One and the Big4Two hold?

To the overflow when empty, the Big4One holds about 127 gallons and the Big4Two about 145 gallons; with a bather the typical ranges are 75-100 and 85-135 gallons. Size your water heater to the larger figure.

Can two people bathe in the Big4Two?

Yes. The Big4Two is a two-seat tub; the Big4One seats one bather.