A glass downstem is a lengthy, slender glass cylinder that slides into the joint of a bong. Its primary job is to guide the smoke through to the water chamber before it's inhaled. The size of the bong determines the length and diameter of the glass downstem, which can have a significant impact on the smoothness and quality of the smoke. Many glass downstems are easily detachable and can be swapped out or upgraded to cater to the smoker's preferences. Plus, cleaning them is easy using a liquid cleaner such as Formula 420.

A glass downstem is a crucial part of a bong that plays a significant role in filtering smoke to create a smoother smoking experience. It works by being inserted into the joint and extending into the water chamber below, where the smoke is drawn down the stem and filtered by the water. This process not only cools the smoke but also eliminates some of the harmful substances, making it less harsh on the lungs and throat. Finally, the purified smoke travels up through the downstem and into the bong's chamber, ready to be inhaled.

When smoking from a bong, using a glass downstem has numerous advantages. Firstly, it aids in cooling down the smoke, resulting in a smoother and less harsh experience for the throat and lungs. The glass downstem extends into the water chamber, where the smoke is filtered through the water before being inhaled. Secondly, the glass downstem creates a vacuum that allows smoke to flow more efficiently into the bong's chamber, resulting in a more effective hit. Finally, using a glass downstem can prevent the unpleasant experience of bong water being sucked up into the smoker's mouth. Overall, incorporating a glass downstem into your smoking routine can enhance the experience and make it more pleasurable.

In order to select the right glass downstem for your bong, there are three crucial factors you need to verify. Firstly, you need to confirm the joint size of your bong, which can be 10mm, 14mm, or 18mm. It's important to measure the joint's width, which should correspond to the widest part of your downstem. Secondly, you must confirm the downstem's length by measuring from the top where you insert your cone piece to the bottom where it sits in the water chamber. Lastly, you need to ensure that the downstem's joint will fit your cone piece, which can be 10mm, 14mm, or 18mm.

A glass diffusor downstem is a specialised type of downstem used in bongs to improve the filtration and cooling of smoke. It differs from a regular downstem in that it features a series of small openings or slits at the bottom. These openings create more bubbles as smoke is drawn through the water, which increases the surface area of the smoke in contact with the water. As a result, the smoke is more effectively filtered and cooled, leading to a smoother and less harsh hit. Glass diffusor downstems come in various sizes and lengths to fit different bongs and can be a valuable upgrade for smokers looking to enhance their smoking experience.