some rachet bits have smaller holes in them, and dont need a screen, like the one i have, for ones with larger holes you have to use a faucet screen to prevent all your weed from going into the bottle
420purplehaze420 Reviewed by 420purplehaze420 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