Using Gerbco’s NH3 Disc Sealers allows you to prevent vapor loss and erosion by sealing the knife trench. The low maintenance sealers are equipped with independent arms to prevent the plugging of residue.

 

We also recommend purchasing the sealers without blades and you use your own worn planter seed discs to reduce your purchase price. The sealers allow you to start side-dressing earlier at higher speeds because the discs run beside the knife and keep the ground from covering small corn.