Berry's Tumbler/Pan Sifter Kit comes with our Model 400 Tumbler, 6 lbs of 14/20 corn media and 8 oz of Berry's Brass Bright polish and a 5 gallon bucket. The difference is in how you separate your media, whether you prefer the pan sifter method or the ease of the rotary separator. Either choice gives you the ability to clean, polish and separate your media from your brass.