The B2000-4 is the mid-capacity in the Benchmark myBath Digital Water Bath family — 4 L water-bath capacity at $1,219, the right pick for multi-flask incubation and mid-volume enzyme reactions. Doubles the working volume of the 2 L sister (B2000-2 at $1,219.00) for a $486 step. 115 V / 230 V chassis (115 V or 230 V); the 230 V EU-plug configuration ships at the same $1,219 (by special order).
For full chemistry rationale (myBath family architecture, digital water bath vs circulating / dry-block alternatives, application profile), see the B2000-2 (2 L) parent page.
Voltage options: This unit can be ordered with European voltage requirements (230V/50Hz). Contact us to order.
Key Specifications
| SKU | B2000-4 |
| Type | Digital water bath, microprocessor temperature control |
| Capacity | 4 L (mid-capacity in the myBath family) |
| Voltage | 115 V or 230 V, 50–60 Hz (discrete variants) |
| Sister capacity SKUs | B2000-2 (2 L, $1,219.00), B2000-12 (12 L, $1,548) |
| List price | $1,219 |
Why the 4 L Capacity — Multi-Flask Incubation Workflows
The 4 L capacity is the default bench water-bath size for multi-flask incubation workflows — 5–10 flasks at 50–250 mL formats simultaneously, mid-volume enzyme-reaction setups (multi-tube digests, multi-tube ligation arrays, multi-sample hybridization), and mid-volume cell-culture warming (pre-warming media bottles, pre-warming reagents).
Pick the myBath 4 L (B2000-4) when:
- Workflow involves multi-flask simultaneous incubation (5–10 flasks at 50–250 mL)
- Mid-volume enzyme reactions in multi-tube setups (24–96 sample arrays)
- Cell-culture media / reagent warming at mid-volume scale (pre-warming 250–500 mL media bottles)
- Hybridization workflows (Northern blot, Southern blot, in-situ hybridization) requiring multi-sample bath capacity
- Multi-investigator dedicated bath at mid-throughput
- The 2 L bath has been throughput-limiting (frequent batch-by-batch sequencing of incubation steps)
Stay with B2000-2 (2 L) when single-vessel small-volume workflows are the routine — the 4 L bath would be excess capacity.
Step to B2000-12 (12 L) when shared-facility throughput or production-scale incubation require larger working volume.
Capacity Step Economics — 2 L → 4 L → 12 L
| SKU | Capacity | List price | $/L | Step |
| B2000-2 | 2 L | $1,219.00 | $367/L | Baseline |
| B2000-4 (this product) | 4 L | $1,219 | $305/L | +$486 from 2 L (66 % step) |
| B2000-12 | 12 L | $1,548 | $129/L | +$329 from 4 L |
Per-liter cost decreases meaningfully across the family — the 12 L bath is the most cost-efficient per-liter, while the 2 L is the most cost-inefficient per-liter but matches small-vessel workflow needs.
Application Profile
Multi-flask incubation workflows — the workhorse application. 5–10 flasks at 50–250 mL formats simultaneously held at set point.
Multi-tube enzyme reactions — restriction digests, ligation reactions, denaturation steps in 24–96 sample arrays.
Hybridization workflows — Northern blot, Southern blot, in-situ hybridization at standard temperature setpoints (37 °C / 42 °C / 65 °C).
Cell-culture media / reagent warming — pre-warming 250–500 mL media bottles before plating; routine cell-culture-room workflow.
Educational laboratory teaching at scale — graduate molecular biology coursework where 4 L bath supports student-cohort multi-flask exercises.
Multi-investigator dedicated mid-throughput bath — facilities allocating one mid-capacity bath per investigator team.
Method-development workflows — protocol-development at multi-sample scale where 2 L is throughput-limiting.
Frequently Asked Questions
What is the working capacity of the myBath B2000-4? 4 L — the mid-capacity size in the myBath family, sized for multi-flask incubation (5–10 flasks at 50–250 mL formats) and mid-volume enzyme reactions.
How does the B2000-4 compare to the other myBath baths? It sits between the 2 L B2000-2 ($1,219.00) and the 12 L B2000-12 ($1,548). The 4 L bath is a $486 step over the 2 L; step up to the 12 L for shared-facility or production-scale throughput.
What voltage options are available? The chassis runs on 115 V (US) or 230 V; the 230 V EU-plug configuration is available by special order at the same $1,219.
What temperature setpoints does it support for hybridization work? Standard hybridization setpoints such as 37 °C, 42 °C, and 65 °C.
Ordering & Configuration
Pair with bath accessories — multi-flask floating racks, multi-tube racks, thermometer, and water-quality treatment per facility protocol.
Confirm voltage and plug type. 115 V / 230 V chassis runs on 115 V (US) or 230 V (international); the 230 V EU-plug configuration is available by special order at the same $1,219.
Plan for periodic bath maintenance — same maintenance protocol as the 2 L sister; larger volume requires more frequent water-quality monitoring.
Confirm at quote: voltage and plug type, intended multi-flask workflow sizing, bath-accessory pairing, water-quality protocol, and lead time.
Warranty: Per Benchmark Scientific standard capital-equipment terms — confirm at quote.
myBath Digital Water Bath family:
- B2000-2 — 2 L ($1,219.00) — small-vessel heating, single-investigator workflows
- B2000-4 (this product) — 4 L ($1,219) — multi-flask incubation, mid-volume enzyme reactions
- B2000-12 — 12 L ($1,548) — shared-facility / production-scale throughput
Pick the 4 L for multi-flask / mid-volume workflows; step down to 2 L for small-vessel single-investigator; step up to 12 L for shared-facility throughput. See B2000-2 parent for full myBath chemistry / family detail.
