The B2023-20 is the larger-capacity sister of the myBath CR Circulating Water Bath family — 20 L bath capacity at $1,494 ($205 step over the 10 L sister B2023-10 at $1,289). Doubles the bath working volume of the 10 L variant, supporting larger external-loop apparatus, longer tubing runs, and multi-loop simultaneous workflows that exceed the 10 L bath's working volume. Universal-circulating-bath workflows — jacketed reaction vessels, microscope-stage temperature control, heat-exchanger circulation — at higher absolute scale.
For full chemistry rationale (circulating vs non-circulating, external-loop workflow types, application profile), see the B2023-10 (10 L) anchor page.
Author confidence note (MEDIUM): No specific B2023-20 brochure in available corpus. Specs sourced from universe label. Confirm exact pump flow rate (likely higher than the 10 L variant's pump to support larger external loops), temperature range, and tubing connection specifications with Benchmark Scientific technical support at first procurement.
Voltage options: This unit can be ordered with European voltage requirements (230V/50Hz). Contact us to order.
Key Specifications
| SKU | B2023-20 |
| Type | Circulating water bath with pump-driven external loop, larger capacity |
| Capacity | 20 L bath volume (2× the 10 L sister) |
| Voltage | 115 V (US Plug) |
| Sister capacity SKU | B2023-10 (10 L circulating bath, $1,289) |
| Compatible accessory | B2023-GL20 (Gable lid for 20 L circulating bath, $119 — recommended evaporation-management accessory) |
| External circulation | Pump-driven external loop with larger flow capacity than 10 L sister (confirm exact flow rate at order) |
| Sister non-circulating family | myBath Digital Water Bath family (B2000) |
| List price | $1,494 |
Why the 20 L Capacity — Larger External-Loop Workflows
The 20 L bath supports larger external-loop apparatus that the 10 L bath would struggle with — production-scale jacketed reaction vessels and reactors at multi-liter working volume, longer tubing runs distributing temperature control across a larger bench area, multi-loop workflows feeding several jacketed vessels (or a jacketed vessel plus microscope stage) from one bath, larger heat exchangers requiring higher pumped-loop flow, and pilot-line process-development where the 10 L bath's pump capacity is the throughput limit.
Pick the myBath CR 20 L (B2023-20) when:
- External-loop apparatus exceeds the 10 L bath's pump flow capacity, or multiple simultaneous external loops are the workflow
- Pilot-line / production-prep workflows at jacketed-vessel scale
- Cost step is justified — $205 over the 10 L bath for a 100 % capacity increase plus larger pump
Stay with B2023-10 (10 L) when single-instrument external-loop workflows are the routine and the 10 L pump capacity meets the apparatus flow requirement.
Capacity Step Economics — myBath CR Family
| SKU | Capacity | List price | $/L |
| B2023-10 | 10 L | $1,289 | $129/L |
| B2023-20 (this product) | 20 L | $1,494 | $75/L (most cost-efficient $/L in the CR family) |
The 20 L bath delivers 2× the working volume at only ~16 % more cost — meaningful per-liter savings at the larger scale.
Application Profile
Production-scale jacketed reaction vessel temperature control — jacketed flasks / reactors at multi-liter working volume.
Multi-loop temperature distribution — multiple jacketed vessels or distributed instruments simultaneously fed from one bath.
Pilot-line / production-prep workflows — process-development at scale where 10 L bath's pump capacity is throughput-limiting.
Larger heat-exchanger workflows — process / instrument heat exchangers requiring higher pumped flow rate.
Long-distance temperature distribution — bench-spanning external-loop installations where total tubing length exceeds the 10 L bath's working flow envelope.
Multi-investigator shared external-loop facility — facilities benefiting from one large circulating bath supporting multiple investigator loops.
Method-development workflows — protocol-development at production-scale or with multiple parallel external loops.
Frequently Asked Questions
Q: How does the B2023-20 differ from the B2023-10? A: Same myBath CR circulating water bath design at double the bath volume — 20 L vs 10 L — at $1,494 vs $1,289.
Q: What is the per-liter cost of the 20 L bath? A: About $75/L, the most cost-efficient in the CR family — 2× the working volume of the 10 L bath at only ~16% more cost.
Q: What accessory manages evaporation on the 20 L bath? A: The B2023-GL20 gable lid ($119), recommended because the larger surface area evaporates more per unit time than the 10 L bath.
Q: Can the B2023-20 run on European voltage? A: It ships as 115V US plug, with a 230V/50Hz configuration available by special order.
Ordering & Configuration
Pair with Gable lid (B2023-GL20, $119) — the larger 20 L bath's larger surface area drives more evaporation per unit time than the 10 L bath; the gable lid manages evaporation across long-cycle workflows.
Pair with external tubing and apparatus. Confirm tubing inlet / outlet sizing — the 20 L bath's connection points may differ from the 10 L bath; confirm at order if migrating apparatus from a 10 L bath.
Confirm pump flow rate vs apparatus requirement. External-loop apparatus may have minimum / maximum flow-rate tolerances. The 20 L bath's pump should provide higher flow rate than the 10 L sister — confirm specific flow specs at order.
Confirm voltage and plug type. B2023-20 = 115 V US plug; a 230 V EU-plug configuration is available by special order.
Confirm bench / floor space. The 20 L bath has substantially larger footprint than the 10 L bath — confirm available facility space.
Confirm at quote: voltage and plug type, intended external-loop apparatus + flow rate fit, tubing connection compatibility, gable-lid pairing, facility-space confirmation, and lead time.
Warranty: Per Benchmark Scientific standard capital-equipment terms — confirm at quote.
myBath CR Circulating Water Bath family:
- B2023-10 — 10 L ($1,289) — single-instrument external-loop workflows
- B2023-20 (this product) — 20 L ($1,494) — larger external-loop apparatus, multi-loop workflows, production-scale
Pick the 20 L for production-scale / multi-loop workflows; sister 10 L for single-instrument workflows. Pair with B2023-GL20 gable lid for evaporation management at the larger surface area.
