I am about to buy Black]Black Leaf - 3-arm Perc Ice Bong with Ashcatcher - Black - Glass Bongs - Bongs and Waterpipes - Smoking Pipes - Grasscity.com The question is though if this downstem will fit this bong Weed Star - Liquid Freezer Downstem - 29.2mm > 18.8mm - Grasscity.com It seems like this would be a good combo