Replacement Downstems for Bongs & Water Pipes

Find the perfect replacement downstem for your water pipe. The downstem is crucial for proper function—it directs smoke into the water for filtration and cooling. Whether you need a standard diffused downstem or an upgrade with enhanced percolation, we have sizes and styles to fit most bongs.

Understanding Downstem Sizes

Downstems have two measurements: joint size (where it connects to your bong, typically 14mm or 18mm) and length (measured in inches or millimeters). To find your size, measure from the bottom of the ground joint to where you want the stem to end in the water—usually 1" above the base.

Types of Downstems

• Diffused Downstems: Multiple slits for enhanced filtration
• Open-End Downstems: Simple, unrestricted airflow
• Showerhead Downstems: Maximum diffusion with multiple holes
• Colored/Worked Downstems: Functional art for custom builds

When to Replace Your Downstem

Replace your downstem if you notice chips, cracks, or if diffusion slots become clogged beyond cleaning. Upgrading to a better diffused downstem is one of the easiest ways to improve your bong's performance.