Yeah most local headshops/tobacco shops/gas stations have pipe screens. Make sure you get the right size for your bowl and it should work out just fine.
Adam01 Reviewed by Adam01 on . grav bong filter ok so i constructed a grav bong outa the ol' 2 liter bottle, with a "ratchet" head ( i think thats waht they're called) stuck in teh bottle cap for a bowl. but i haven't done this in forever and i forget how i used to make a screen so the weed didn't pull through into the chamber! someone help!!!! i forget!!! im a noob!! Rating: 5