Compare HACHILL’s three Laydown cold plunge models by footprint, external height, material and the type of installation planning each model requires.
CT16 is the compact Thermowood + 304SS option at L1350 × W650 × H750 mm. CT20 uses 304 Stainless Steel and a lower H610 mm external height. CT26 increases the envelope to L1830 × W750 × H850 mm, combines Thermo Spruce + 304SS and includes a Step in its listed setup.
All three models are designed for use with an external cooling system.
Built for: distributors, recovery brands, gyms, spas, wellness facilities and commercial projects evaluating a laydown tub format.
Start with the model difference that matters most to the project: CT16 for compact Thermowood placement, CT20 for lower-profile stainless geometry, or CT26 for a larger Thermowood envelope with a listed Step.
The three models share a Laydown body format, but their dimensions, material direction and model-specific planning needs are different.
| Comparison | CT16 | CT20 | CT26 |
|---|---|---|---|
| Format | Laydown | Laydown | Laydown |
| External Dimensions | L1350 × W650 × H750 mm | L1500 × W700 × H610 mm | L1830 × W750 × H850 mm |
| Internal Dimensions | L1260 × W560 × H600 mm | L1430 × W630 × H530 mm | L1086 × W666 × H750 mm |
| Material | Thermo Spruce + 304SS | 304 Stainless Steel | Thermo Spruce + 304SS |
| Step | Not listed in setup | Not listed in setup | Listed |
| Main Decision | Compact delivery & placement | Lower-profile geometry & entry | Larger envelope, Step & service access |
| Cooling | External cooling system | External cooling system | External cooling system |
Start with CT16 when compact Thermowood placement is the priority. Start with CT20 when stainless construction and lower external height matter more. Start with CT26 when the larger Thermowood layout and listed Step fit the project.
Each Laydown model changes a different part of the installation decision, so compare the relevant constraint instead of treating the three tubs as simple size variants.
Review doorway width, access path, corridor or turning space, final orientation and surrounding placement area when the compact CT16 is the leading option.
CT20 shifts the decision toward its H610 mm external height, intended entry side and L1430 × W630 × H530 mm internal geometry.
CT26 combines a larger external envelope with a listed Step and visible service area. Include Step position, entry, connection access and practical service-side space in the layout.
CT16, CT20 and CT26 all provide inlet, outlet and drain connections and are designed for use with an external cooling system. Plan the tub, drainage and supporting cooling equipment together within the available installation area.
Coordinate the selected tub position with inlet and outlet connections, nearby fixed construction and the proposed location of the external cooling equipment.
Include the drain connection in the site layout and keep the drainage path practical for the selected wet-area arrangement.
The external cooling equipment needs its own suitable location in addition to the tub footprint. Cooling temperature and performance depend on the selected external cooling and water-system configuration.
Start with CT16 when a smaller Laydown footprint, Thermo Spruce + 304SS and delivery or turning constraints are the main project priorities.
Start with CT20 when 304 Stainless Steel, the H610 mm external profile and entry/internal geometry are stronger decision factors.
Start with CT26 when the larger external envelope fits, Thermo Spruce + 304SS is preferred and the listed Step and service area can be incorporated into the layout.
Still deciding between Laydown and Upright? Return to the Cold Plunges range before choosing a model. You can also review Upright Cold Plunges or compare Thermowood Cold Plunges across body formats.
Send the project information needed to compare CT16, CT20 and CT26 or prepare a quotation for the selected model.
For OEM or order-specific requirements, you can also review OEM Manufacturing and Quality Control & Inspection.
Use these resources after narrowing the tub choice when the project needs more detail on Laydown selection, external cooling-system matching or drainage planning.
Review the main considerations when comparing longer horizontal cold-plunge tub configurations for a project.
Review how the selected tub and external cooling equipment need to work together as one project configuration.
Review drainage and surrounding wet-area considerations for a Laydown cold-plunge installation.
