Silicone pipes have plenty of advantages, namely durability and easy cleaning. Still, people love old-fashioned glass. Why not have the best of both worlds and use an 18mm to 14mm Silicone Downstem? Using a silicone downstem allows you to keep the diffusion while making it easier to clean and less likely to break. These downstems are meant for 18mm female jointed water pipes and hold 14mm male bowls. They come in not only multiple sizes but colors as well. The 18mm to 14mm Silicone Downstem will make your life easier.

The Famous X Clear Glass Down Stem makes the perfect add-on for any bong!

This awesome essential accessory adds an extra level of water filtration to your smoking experience for hits that are as smooth as can be! The precision-cut percolation slits give you more control over your smoke and will allow for bigger and cleaner hits than ever before!

This handy little accessory is perfect for bong owners who want a smoother smoking experience. Its quality construction makes cleaning and maintenance a breeze, and with proper care, it will last for years. It's straight, minimalist design features clear glass with the Famous X signature Black Star logo. 

This replacement downstem is 3in/76mm long and is used to connect a 14mm slide/bowl into an 18mm stemless opening. The standard 6-cut style is what you would find in most bongs.

This replacement downstem is 2.5in/64mm long and is used to connect a 14mm slide/bowl into an 18mm stemless opening. The standard 6-cut style is what you would find in most bongs.

This replacement downstem is 3.75in/95mm long and is used to connect a 14mm slide/bowl into an 18mm stemless opening. The standard 6-cut style is what you would find in most bongs.

This replacement downstem is 4in/102mm long and is used to connect a 14mm slide/bowl into an 18mm stemless opening. The standard 6-cut style is what you would find in most bongs.

This replacement downstem is 4.75in/121mm long and is used to connect a 14mm slide/bowl into an 18mm stemless opening. The standard 6-cut style is what you would find in most bongs.

This replacement downstem is 3.5in/89mm long and is used to connect a 14mm slide/bowl into an 18mm stemless opening. The standard 6-cut style is what you would find in most bongs.

This replacement downstem is 5in/127mm long and is used to connect a 14mm slide/bowl into an 18mm stemless opening. The standard 6-cut style is what you would find in most bongs.

This replacement downstem is 4.5in/114mm long and is used to connect a 14mm slide/bowl into an 18mm stemless opening. The standard 6-cut style is what you would find in most bongs.