Looking for a replacement downstem for your bong that’s 4-inches long? This diffuser downstem is just what you need to smooth and filter your hits! It’s made of glass and features a 18.8mm male to 14.5mm female joint, making it compatible with 18.8mm female-jointed water pipes. 

Whether you broke or misplaced the original downstem that came with your water pipe, or simply want a spare, this diffuser downstem will serve you well for a long time. It features a classic 6-cut style found on most bongs.