---
type: restriction
id: usps-drain-cleaner
asset: shipping-restrictions-by-class
title: "Drain cleaner — Postal shipping restrictions by item category"
sources:
  - https://selleressentials.com/usps-hazmat-noncompliance-fee-2026/
source_quote: "Drain cleaner | Corrosive | UN1824"
generated: true
harvested: 2026-08-04
stale_after: 2027-08-04
item_category: "Drain cleaner"
carrier: "USPS"
restriction_type: "restricted"
scope: "domestic US"
conditions: "Classified as corrosive. Requires hazmat declaration. $50 noncompliance fee if undeclared, effective July 12, 2026."
verified: true
unverified_fields: carrier, conditions, scope
---
**Item category:** Drain cleaner

**Carrier:** USPS

**Restriction type:** restricted

**Scope:** domestic US

**Conditions:** Classified as corrosive. Requires hazmat declaration. $50 noncompliance fee if undeclared, effective July 12, 2026.

> Drain cleaner | Corrosive | UN1824

Source: <https://selleressentials.com/usps-hazmat-noncompliance-fee-2026/>