---
type: product
schema_version: 1
stock_number: "71161-1"
canonical_url: "https://www.artisantg.com/Scientific/71161-1/MKS-Instruments-2258B-00020RV-Mass-Flow-Meter"
json_url: "https://www.artisantg.com/Scientific/71161-1/MKS-Instruments-2258B-00020RV-Mass-Flow-Meter.json"
generated_at: "2026-11-07T11:06:34.189Z"
last_updated: "2026-04-06T13:32:15.610-05:00"
---

# MKS Instruments 2258B-00020RV Mass Flow Meter

_Summary and Categories are this item's record. The description sections and FAQ are machine-assisted and can contain errors; where they disagree with the record, the record is correct, and where description sections disagree with each other, Details wins._

## Summary

- Manufacturer: MKS Instruments
- Model: 2258B-00020RV
- Condition: Used and in Excellent Condition
- Price: $595.00 USD
- Availability: In stock, 1 available
- Warranty: 1-Year Warranty with 30-Day Return Guarantee
- ITAR restricted: No
- Shipping weight: 10 lb
- Shipping dimensions: 14X14X14 in

## Categories

- Lab & Analytical > Transducers (primary)

## Details

### Configuration

- Full Scale Range: 20 sccm of N2
- Fittings: Cajon 4 VCR (Male)
- Seals: Viton

## Images

- <https://www.artisantg.com/itemimages/mks_instruments_2258b_00020rv_view1_202242611746.jpg>
- <https://www.artisantg.com/itemimages/mks_instruments_2258b_00020rv_view2_202242611746.jpg>
- <https://www.artisantg.com/itemimages/mks_instruments_2258b_00020rv_view3_202242611746.jpg>
- <https://www.artisantg.com/itemimages/mks_instruments_2258b_00020rv_view4_202242611746.jpg>