TOPUstech CorporationProduct Information > ERN Series

ERN Series

The feel of genuine materials.
Design that has gone through multiple processes until its current perfection.
The joy of having access to luxury.

CONCEPT

Baths for Homes

ERN Series

Custom-made bathtubs are highly valued by hotels and Japanese inns. Ustech’s ERN Series utilizes the manufacturing know-how and techniques used in these bathtubs, and implements them in those used in one’s own private home.

Japanese cypress (which gives off a pleasant fragrance) is used on the bathtub’s frame, and Towada stone (known to be relaxing and pleasing to one’s eyes) is used on the bathtub’s interior.

In addition, the bathtub is fully loaded with functions that enable one to fully relax from the heart.

Through the interweaving of fine materials and impeccable design, one can have one’s fill of tranquility and relaxation.

Our fragrant and dignified ERN Series: the place where one can have luxurious moments when one’s heart can truly relax.

ERN Series
ERN Series’ Features

ERN Series’ Features

FORM

The frame made from Japanese cypress leaves a strong impression through its presence by its sheer simplicity. The sweet-smelling fragrance drifts about in the bathroom and gives one the feeling of being immersed in a forest.
The interior is made from Towada stone, which is a locally sourced natural stone. When it gets wet, its hue gets deeper, and an even more brilliant shade is created from the synergy of the stone and water’s refraction.
The relaxation and deep tranquility provided by the ERN Series is an appropriate addition to the valuable Japanese culture of bathing.

Uncompromising product creation where every nook and cranny is given apt attention

From the selection of the raw materials to the production process, we leave no room for compromise. Because of this, we are proud of the overwhelming high quality of the space we create.

The Japanese Cypress Frame: Relaxing Your Heart

The Japanese Cypress Frame: Relaxing Your Heart

The Japanese Cypress has a unique presence that overflows with an atmosphere that is truly Japanese, and emits a fragrance that drifts through the whole bathroom. All these factors create a space where one’s heart can truly relax.

The Towada Stone: Easy on the Eyes and on the Skin

The Towada Stone: Easy on the Eyes and on the Skin

The bathtub’s interior is made from a locally sourced natural stone, the Towada stone. When it gets wet, the color changes to blue which is refreshing to the eyes. It is also exceptional in functionality: it is not slippery and is very good with heat insulation.

A bathtub that is created with precise care and technique by our craftsmen

The bathtub interior is made of Fiberglass Reinforced Plastic (FRP) which is exceedingly durable and waterproof. Our workers then place the Towada stone on the FRP with the care and skill of a craftsman to complete the product.
Before shipping, we inspect each and every small detail, where only the products that pass the standards are released to our customers. Truly a handmade bathtub.

A bathtub that is created with precise care and technique by our craftsmen

Care and Maintenance Tips

  • After using, clean well using a soft sponge or towel and wash it with water.
  • When the dirt is especially hard to clean, use detergent and then wash with water.
  • Please avoid using hard scrubbing brushes as they may scratch the product.
  • Please only air-dry in order to avoid over-drying the product. Over-dryness can cause crevices and cracks to appear.

Prohibited Items

  • Products such as aroma oils, massage salts, products with alcohol, and liquids/objects with coloring may change the color of the product, so please avoid using them in the bathtub.
  • Wash any products (oils, lotions, etc.) that stick to one’s skin before entering the bathtub.

Important Points to Remember

  • With the use of spa/bathing powder, due to additives included in these products, there is a chance that they may seep into the bathtub and ultimately change its color. Please understand that this is due to the fact that the bathtub is created from natural raw materials.
  • Please be aware that the cement in between the stones may have imperfections, but due the quality and manner that we created the body of our bathtubs, it is not a cause for worry.

DESIGN CONCEPT

Careful selection and polishing to perfection.
A collection of our customer’s preferred raw materials, designs, and technical specifications.
Through our bathtub’s design, we deliver moments of supreme bliss that overflow with healing.

Originally developed and designed

Originally developed and designed

To be able to come in and out of the bath with peace of mind.
To be able to forever enjoy bathing in a relaxing environment.
To be able to smoothly drain the bath after use.
To have a bathtub that is loaded with original functions that cater to the needs and wants of those who use it.
All these are offered by our ERN Series.

Genuine materials and design that has gone through multiple processes until its current perfection.

Genuine materials and design that has gone through multiple processes until its current perfection.

The frame that is crafted with Japanese cypress, which beauty and fine quality makes one feel at peace. The bathtub’s interior that is made from Towada stone, which unique texture enables one to fully enjoy one’s bathing experience. A well-polished design that is the the answer to many of our customer’s desires. A steady calm that wraps the heart and mind.

Back and Head Rest

Back and Head Rest

Due to the optimized dimensions and angles of the back and head rest, one may stay in a relaxed position for a long time while one is bathing.

Step and Foot Rest

Step and Foot Rest

The step that enables one to steadily enter and leave the bathtub also functions as a relaxing foot rest.

Drain Plug

Drain Plug

The drainage cork is made of simple rubber. Due to the slight slope at the base of the bathtub by the plug, water is drained smoothly and fast.

LINEUP

We offer size variations that can easily be used in one’s private home.

Rock and Wood Type

Type Size(mm) Price (tax not included) Diagram
ERN-1709
Rock and Wood Type
1700×910×529~546H
(Depth 460)
¥840,000 PDF
ERN-1609
Rock and Wood Type
1600×910×529~546H
(Depth 460)
¥740,000 PDF
ERN-1608
Rock and Wood Type
1600×810×529~546H
(Depth 460)
¥680,000 PDF
ERN-1508
Rock and Wood Type
1500×810×529~546H
(Depth 460)
¥650,000 PDF
Rock and Wood Type

Stone Type

Type Size(mm) Price (tax not included) Diagram
ERN-1709
Stone Type
1700×870×532~549H
(Depth 463)
¥880,000 PDF
ERN-1609
Stone Type
1600×870×532~549H
(Depth 463)
¥780,000 PDF
ERN-1608
Stone Type
1600×770×532~549H
(Depth 463)
¥720,000 PDF
ERN-1508
Stone Type
1500×770×532~549H
(Depth 463)
¥690,000 PDF
Stone Type

※Appointed date of delivery is 1-1.5 months after the order is made.
※Delivery charge is not included.
※Bath reheating function is available.
※Please be aware that in order to always provide the best products, some technical functions of the bath (appearance, functions, performance, etc.) may be changed without prior notice.

OPTIONS

The beauty found in the presence of natural materials such as wood and stone is an important factor in enhancing the feeling of being in an Onsen. Please choose your preferred type according to the material and feel of your bathtub.

Because our water outlet’s inner structure is made of stainless steel, the hot water does not touch the material of the surface directly. Because of this, our product exceeds the durability of current wooden water outlets. The internal plumbing arrangement makes installation also quite easy.

WS-SN1

WS-SN1

Our standard model with a design that one does not grow tired of, and does not choose which type of bathtub to match with.
【Size】W200×D320×H215mm
【Material】Lumber (Japanese cypress)
【Highest Volume of Water】22ℓ/min
【Weight】2.6kg
【Standard Price】¥90,000(tax not included)

※Water stopper is not included.
※Delivery charge is not included.
※Appointed date of delivery is 1-1.5 months after the order is made.

Genuine materials and design that has gone through multiple processes until its current perfection.

Genuine materials and design that has gone through multiple processes until its current perfection.

The model that is brimming with personality and leaves a strong impression. Setting the mood through the presence of stone.
【Size】W200×D325×H215mm
【Material】Stone (G365)
【Highest Volume of Water】22ℓ/min
【Weight】10.2kg
【Standard Price】¥150,000(tax not included)

Showroom

Showroom

In our showroom, we exhibit our Made-to-Order Bathtub ‘ERABISOU (選美槽)’, Unit Bath WABURO, Designer Bathtub ‘ERN Series’, as well as CAMBRIA’s ‘Quartz Engineered Stone ’used for kitchens, wash counters, and many others.