April 17, 2026
Securities and Exchange Commission
100 F Street, N.E.
Washington, D.C. 20549-7561
Dear Sirs/Madams :
We have read Item 4.01 of Hydrofarm Holding Group Inc.'s Form 8-K dated April 17, 2026, and have the following comments.
| 1. | We agree with the statements made in the first, second, third and fourth paragraph. |
| 2. | We have no basis on which to agree or disagree with the statements made in the fifth paragraph. |
Yours truly,
/s/ Deloitte & Touche LLP
Minneapolis, Minnesota