The 3"- 4" Inflatable Water/Air Test Plug is an essential tool for testing plumbing systems. Constructed from durable materials, this plug is designed to withstand high pressure and is easy to inflate for quick installation. It effectively seals pipes during testing, ensuring no leaks occur. This test plug is compatible with various pipe sizes and is ideal for both residential and commercial plumbing applications. Its robust design meets industry standards, making it a reliable choice for professionals in the field.