</>Build with Tariff Intelligence|Programmatic access to tariff calculations and HS code classification.Explore Developer Resources →

Iron Threaded Check Valve from China

Threaded-end cast iron check valve for easy installation in low-pressure irrigation systems, preventing back-siphonage with a poppet design. HTS 8481.30.20.10 covers this iron nonreturn valve for vats and pipes.

Duty Rate — China → United States

42.5%

Rate breakdown

9903.88.0125%Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China

Import Tips

Include thread gauge certifications (NPT/BSP) to prove pipe compatibility

Separate from hose bibs in declarations to avoid faucet misclassification