Cold plunge and hot soak, in the same water
From 37°F to 104°F.


Made to commission
An egg in black acrylic, the only dark vessel in the collection.
We'll be in touch shortly.
Material: Black acrylicSee the finishes
The Founding Series: the first 100 Rivelor vessels, each numbered and sent with a digital certificate.
With you, every step.
What happens after you order OVUM.
1 · Today
Welcome to The Rivelor Circle, for life.
The moment your order is paid, you are part of The Rivelor Circle. Your confirmation follows, with the full-size footprint and the setup guide. Reply to it: it reaches a person. Your vessel receives its Founding Series number, with a digital certificate signed by the founder, sent to you by email.
2 · Production
Your vessel takes shape.
Made once your commission is placed. We take a limited number of commissions each month, so that every piece is given the time it needs: expected in January, in many cases sooner. An email the day production starts, then photos of your own vessel, finished, before it leaves the workshop. Want your Rivelor sooner? TIDE and MONOLITH are delivered in 1 to 2 weeks.
3 · Before it ships
Crated, tracked, on its way.
Before it leaves, a photo of its wooden crate.
4 · On its way
Live tracking.
Your tracking number arrives by email the day it ships: follow it from the port to your driveway.
5 · Delivery and after
Your first immersion.
The carrier calls to set the day. Two hoses, one outlet, and the water is yours. We stay one email away, for as long as you own it, with a 5-Year Warranty.
A printable PDF, to share or approve.
Send the page and its quote, by message or email.
Your commission
The day you order, we reserve your place in the workshop and your vessel is numbered in The Founding Series. From that moment the piece is yours alone, which is why a commission is final once production begins. Cancellation terms
OVUM is an egg drawn in black acrylic, one continuous curve from rim to base. Black inside and out, it is the darkest form we make, a single dark curve in a bathroom or a spa room.
Made to commission in black acrylic, with two integrated circulation jets and LED light. Its compact Hot & Cold Unit connects by two hoses and holds the water anywhere from 37 to 104°F.
Dimensions
66.9 × 31.5 × 22.8 in (1700 × 800 × 580 mm)
| Hot & Cold Unit | Separate compact unit on casters, heats and chills 15 W × 21.7 D × 22.8 H in |
| Water temperature | 37 to 104°F |
| Electrical | A standard grounded household outlet |
| Shipping crate | 70.9 × 33.5 × 26.8 in (1800 × 850 × 680 mm) |
Download the spec sheet (PDF)Print the footprint at full size (PDF)
Tape the printed outline to your floor and see OVUM in the room before you order.
Specifying for a client, a hotel or a spa? Trade & Contract
Everything for your first ritual: the OVUM vessel and its Hot & Cold Unit, from a 37°F plunge to a 104°F soak, and its cover to keep the water ready between sessions. The manufacturer's guide travels in the crate.
Made once your commission is placed, your vessel is given the time a piece made to last requires: about 3 months, in many cases sooner, expected in January. Then free delivery anywhere in the 48 contiguous states, in a wooden crate, on a day agreed with you.
Want your Rivelor sooner? TIDE and MONOLITH are delivered in 1 to 2 weeks.
Before shipping, we agree the delivery day and the access with you; if you wish, we go over the room and the power supply together. We guide you at every step of the setup.
Will it reach the room?
OVUM travels in a wooden crate of 70.9 × 33.5 × 26.8 in. Measure the narrowest door or passage on the way to the room.
5-Year Warranty on the shell, 1 year on the Hot & Cold Unit. Warranty terms
Every detail is set out in our Return policy.
Cold plunge and hot soak, in the same water


Our commitments
Written terms, before you buy. Warranty terms
Every vessel comes with its Hot & Cold Unit, from a 37°F plunge to a 104°F soak.
Anywhere in the 48 contiguous states, on a day agreed with you.
Someone who knows the vessels, and who will be in touch shortly.
Questions
Indoors or outdoors: a bathroom, a spa room, a terrace. Outdoors, keep its cover on when the weather turns extreme; for acrylic vessels, a roof or some shade is recommended.
OVUM travels in a crate of 70.9 × 33.5 × 26.8 inches. Measure the narrowest door or passage on the way, then try the check in the Shipping section above.
Want your Rivelor sooner?
The pure rectangle, delivered in 1 to 2 weeks. $9,990.
Private consultation
By phone: your space, the right vessel, delivery. You decide afterwards, at your own pace.
Trade & Contract
Offer your clients the finest in hot and cold, in a vessel designed to be seen, with one person beside you from the first drawing to the first fill.