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Big4Two vs Shak: Walk-In Tub Comparison

The Ella Big4Two and the Ella Shak 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 Big4Two walk-in tub — Big4Two36" x 80" x 40"

Ella's Bubbles Shak walk-in tub — Shak36" x 72" x 39"

	Big4Two	Shak
Estilo de puerta	U-shape outward-swing door	U-shape outward-swing door
Apertura de la puerta	Outward	Outward
Asientos	Dos bañistas	Un bañista
Tamaño real (An x L x Al)	36" x 80" x 40"	36" x 72" x 39"
Asiento	22" and 24"	28" x 26 3/4 in.
longitud interior	37 3/8 in. (chart)	66 1/4 in.
Del asiento al rebosadero (profundidad de inmersión)	19 1/4 in.	16 1/2 in.
Del asiento al reposapiés	17 in.	17 in.
Reposapiés	no aparece	22 1/2 W by 14 1/2 L
Peso neto	328 lb	286 lb
Peso de envío	531 lb	429 lb
Tamaño del embalaje (An x L x Al)	38" x 82" x 50"	39" x 74" x 49"
Agua hasta el rebosadero, sin ocupante	145 gal	145 gal
Agua con un bañista (valor habitual)	85-135 gal	80-120 gal

Qué la hace diferente

Both are 36 in. wide.
The Big4Two is 8 in. longer than the Shak (80 in. vs 72 in.).
The Big4Two is 1 in. taller than the Shak (40 in. vs 39 in.).
They share the same door design: u-shape outward-swing door.
The Big4Two seats two bathers; the Shak is a single-seat tub.
Both hold about 145 gallons to the overflow when empty.
Net weights are 328 lb (Big4Two) and 286 lb (Shak).

Common questions

Which is bigger, the Big4Two or the Shak?

The Big4Two has the larger footprint at 36" x 80" x 40", against 36" x 72" x 39" for the Shak.

Do the Big4Two and the Shak 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 Big4Two and the Shak hold?

To the overflow when empty, the Big4Two holds about 145 gallons and the Shak about 145 gallons; with a bather the typical ranges are 85-135 and 80-120 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 Shak seats one bather.