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Head-to-head buyer guide

Echelon Fitness All-In-One Hot or Cold Plunge Tub, SKUs ECH-ALLRES-KIT (White) and ECH-TX-ALL-RESB (Black) vs Inergize Health Spire Apex

Specs, prices, editor verdict, and who should buy which, compared side by side.

By Ryan · Founder
Updated Oct 29, 2026

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Quick verdict

Echelon Fitness All-In-One Hot or Cold Plunge Tub, SKUs ECH-ALLRES-KIT (White) and ECH-TX-ALL-RESB (Black) (ultra premium, $9,999.99) vs Inergize Health Spire Apex (premium, $9,490). Different tools for different jobs (see the per-product details below).

Compared on 0 shared specs · same category (cold plunge).

White Echelon All-In-One plunge tub with the chiller housing and round fan grille built into the left end and a slatted drip tray in front, a person reclining in the water
Echelon Fitness

All-In-One Hot or Cold Plunge Tub, SKUs ECH-ALLRES-KIT (White) and ECH-TX-ALL-RESB (Black)

The Echelon All-In-One is an acrylic tub that both chills and heats, with the 1.0 HP chiller built into one end and a 15 amp outlet as its listed power supply. Echelon's US store sells it for $9,999.99 in White or Black.

PRICE
$9,999.99
View at Echelon Fitness →
Inergize Spire Apex cedar and stainless steel cold plunge with reclined seat
Inergize Health

Spire Apex

Inergize's new flagship pairs the Spire's cedar-and-stainless shell with a 1HP chiller whose Ice-Making Mode the brand rates to 32°F.

PRICE
$9,490
View at Inergize Health →
The verdict

We have not scored these two head to head, so this page does not name a winner. The Inergize Health Spire Apex starts at $9,490 and the Echelon Fitness All-In-One Hot or Cold Plunge Tub, SKUs ECH-ALLRES-KIT (White) and ECH-TX-ALL-RESB (Black) at $9,999.99. The per-buyer recommendations below say who each one suits.

Who should buy which

Pick the Echelon Fitness All-In-One Hot or Cold Plunge Tub, SKUs ECH-ALLRES-KIT (White) and ECH-TX-ALL-RESB (Black) if

Buyers who want a single tub for cold and warm water, set from the unit or an app, who have room for a tub measuring 76.7 x 31.5 x 28 inches and can take a 441 lb freight delivery or pay $299.99 for Hub Group setup where it is offered.

Skip if

You are buying for a gym, spa or studio, because Echelon's Terms page voids its warranties for commercial use while its support article offers 6 months; you need the 35.6°F figure confirmed, since the spec table's floor is 37°F; or you want filled weight and floor load in writing before a deck install.

Pick the Inergize Health Spire Apex if

Buyers who want the coldest manufacturer-rated floor available in a cedar-and-stainless tub at this price, and who can wait out a 16-week preorder.

Skip if

You need delivery soon, you buy on warranty depth (Renu's 60-month tub coverage vs 12 here), or you can't run a dedicated 120V/20A circuit.

Go deeper

FULL REVIEW
Read the Echelon Fitness All-In-One Hot or Cold Plunge Tub, SKUs ECH-ALLRES-KIT (White) and ECH-TX-ALL-RESB (Black) review →
FULL REVIEW
Read the Inergize Health Spire Apex review →

Frequently asked

Which is better, the Echelon Fitness All-In-One Hot or Cold Plunge Tub, SKUs ECH-ALLRES-KIT (White) and ECH-TX-ALL-RESB (Black) or the Inergize Health Spire Apex?

We have not scored these two head to head, so this page does not name a winner. The Inergize Health Spire Apex starts at $9,490 and the Echelon Fitness All-In-One Hot or Cold Plunge Tub, SKUs ECH-ALLRES-KIT (White) and ECH-TX-ALL-RESB (Black) at $9,999.99. The per-buyer recommendations below say who each one suits.

How much do they cost?

Echelon Fitness All-In-One Hot or Cold Plunge Tub, SKUs ECH-ALLRES-KIT (White) and ECH-TX-ALL-RESB (Black): $9,999.99. Inergize Health Spire Apex: $9,490. Prices are verified against the manufacturer; check the live links for current pricing.

Who should buy which one?

Echelon Fitness All-In-One Hot or Cold Plunge Tub, SKUs ECH-ALLRES-KIT (White) and ECH-TX-ALL-RESB (Black): Buyers who want a single tub for cold and warm water, set from the unit or an app, who have room for a tub measuring 76.7 x 31.5 x 28 inches and can take a 441 lb freight delivery or pay $299.99 for Hub Group setup where it is offered. Inergize Health Spire Apex: Buyers who want the coldest manufacturer-rated floor available in a cedar-and-stainless tub at this price, and who can wait out a 16-week preorder.

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