Grav Gravitron Replacement Downstem Collar

Replace that thing that broke with the Gravitron Replacement Collar! This replacement downstem from Grav is exactly what you need to get your favorite Gravitron Gravity Bong up and running again. The Gravitron Replacement Downstem Collar features a 16mm male joint that fits into the inner bottle on both sizes of Grav’s namesake Gravity Bong* (this accessory is not compatible with the Version 2 Gravitron). The collar then works to hold the 12mm Gravitron bowl slide in place on the top. The Gravitron Replacement Downstem is an OEM (original equipment manufacturer) replacement part designed specifically for use with the Version 1 Gravitron Gravity Bong. 

Get Connected:

Grav® Gravitron Downstem Collar
Fits the Version 1 Gravitron*
Highest Quality Materials
OEM Replacement Part
2.25” inches Tall
Easy to Replace
Water Pipe Accessory
12mm Female Joint Top
16mm Male Joint Bottom

*Note: This accessory is designed for use with the original Grav Gravitron. The original Gravitron was released in 2004 and was replaced with the Gravitron 2.0 in May 2021. Please reach out if you need any help figuring out which version you own!