スチール排水試験管栓/プラグ 4インチ(100mm) 配管ストップチューブブランキングキャップ

الوصف

🔧 Lock in reliability, seal out uncertainty!

This 4-inch (100mm) steel drain test plug from AB Tools features a corrosion-resistant zinc-plated alloy steel body with a brass wing nut center-lock mechanism. Designed for secure sealing during low-pressure pipe repairs and air/water quality testing in drainage and sewer systems, it offers durability and precision fit for professional plumbing applications.