A bridge over water

Need to replace a bong downstem? When it comes to heightening smoking pleasure, our removable downstems are essential to the water pipe puzzle.

Strong suction and pull

A bong just isn’t a bong without a downstem. In fact, it’s kinda like the bridge between the dry herb packed in the bowl and the water that keeps smoking sessions fresh. Downstems are designed to pull the smoke down through the water chamber, efficiently diffusing the vapors for a cooler, smoother hit.

Easy peasy cleaning

Downstems can become resinous over time, which is why we recommend a regular cleanse. Luckily, our removable glass downstems make cleaning a snap. Simply remove the downstem bowl from the dab rig or bong; soak in 80% isopropyl alcohol, add a dash of salt, soak for one hour, and rinse thoroughly.

Multiple size options

Upgrading your downstem is one of the easiest ways to take smoking sessions to new heights. At Biohazard, we offer a variety of downstem sizes and materials, like glass and silicone, and an array of unique colors and styles. From classic pieces to glow-in-the-dark tubes, we’ve got you covered.

With downstems … size matters

How do you know which downstem to choose for your dab rig or bong setup? Biohazard breaks down how to measure a downstem to complete a waterpipe setup. Here’s what’s needed:

• Ruler
• A pencil
• The waterpipe
• A dime

1. Measure the waterpipe’s inner chamber

Insert a pencil into the waterpipe’s female joint opening. Leave about a half-inch of space between the pencil and the bottom of the waterpipe’s base. Mark the pencil where the end of the joint meets the inside of the waterpipe.

2. Measure the length of the downstem

Measure the length (in inches) from the mark to the tip of the pencil. This is the length of the downstem that’s needed. Quick note: Biohazard follows the industry standard of measuring our downstems from the end of the ground joint to the tip of the downstem.

3. Measure the inner diameter of the female joint

Measure the width of the inner diameter of the female joint in millimeters. The three most common joint sizes are 10mm, 14mm, and 19mm. Here’s where the dime comes in: A dime fits through a 19mm joint; a pencil fits through a 14mm joint. If neither object fits, you’re likely looking for a 10mm joint. Once you figure out the right size, get ready to shop!