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Cal Hypo Tablets for Spa Sanitization from Mexico

3-inch calcium hypochlorite tablets (65% chlorine) designed to dissolve slowly in spas and hot tubs for continuous sanitization. This product is classified in HTS 2828.10.00.00 as other calcium hypochlorites in commercial form, not as a finished preparation. Tablets provide controlled release to maintain safe water chemistry.

Duty Rate — Mexico → United States

12.4%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico

Import Tips

Certify tablet composition avoids organic stabilizers per Chapter 28 notes; use child-resistant packaging labels

Pitfall: incorrect declaration as 'pool chemical' leading to reclassification