We have around 30 of these individual fertilizer units that are just going to waste laying around here. Not sure of the brand, maybe Waco? Large opener disk blade(about 24"), contoured fertilizer knife for liquid or NH3, and smaller covering blade. Made to bolt to 4" bar. $90. each or $2500 for all. Open to offers. sixtwozero, fourzeroeight, eightsixfivethree.