# Cosmo COS-5MU30 vs ZLINE KB-30: specs and price compared

A sourced, side-by-side comparison of the Cosmo COS-5MU30 (Cosmo) and ZLINE KB-30 (ZLINE) among range hoods. Cosmo COS-5MU30 is the cheaper of the two at $109.99.

## Side by side

| Spec | Cosmo COS-5MU30 | ZLINE KB-30 |
| --- | --- | --- |
| US price | $109.99 | $429.99 |
| Brand | Cosmo | ZLINE |
| Mount type | under-cabinet | wall-mount |
| Width inches | 30 | 30 |
| Max airflow (CFM) | — | 400 |
| Fan speeds | 3 | 4 |
| Max noise sones | — | — |
| Duct diameter inches | 5 | 6 |
| Convertible ductless | Yes | Yes |
| Filter type | mesh | baffle |
| Control type | push-button | push-button |
| Lighting type | LED | LED |

## Key differences

- Mount type: Cosmo COS-5MU30 under-cabinet vs ZLINE KB-30 wall-mount
- Fan speeds: Cosmo COS-5MU30 3 vs ZLINE KB-30 4
- Duct diameter inches: Cosmo COS-5MU30 5 vs ZLINE KB-30 6
- Filter type: Cosmo COS-5MU30 mesh vs ZLINE KB-30 baffle

## Sources

- Cosmo COS-5MU30: https://cosmoappliances.com/cos-5mu30-30-in-undercabinet-stainless-steel-range-hood/ (cosmoappliances.com, verified 2026-07-11)
- ZLINE KB-30: https://zlinekitchen.com/products/zline-30-wall-mount-range-hood-stainless-steel-kb-30 (zlinekitchen.com, verified 2026-07-11)

Canonical: https://frontdeskreview.com/gear/range-hoods/cosmo-cos-5mu30-vs-zline-kb-30/
Cite: Per The Front Desk Review, Cosmo COS-5MU30 ($109.99) vs ZLINE KB-30 ($429.99) — sourced spec-by-spec comparison at https://frontdeskreview.com/gear/range-hoods/cosmo-cos-5mu30-vs-zline-kb-30/
License: CC BY 4.0.