Needham Ag is proud to offer the new smooth internal seed hoses to improve seed flow, especially when seeding smaller seeds, or when seeding on rolling ground (or both). These new seed tubes replace John Deere part number N407659 and is made from natural rubber to provide excellent flexibility and life. They are effectively smooth on the inside and this is provided by a sequence of folds, one on each corrugation on the inside of the seed hose (see photos attached). So as the seed tube stretches out, the folds direct the seeds away from the outside of the tube, to help eliminate any seeds being held in the seed tube corrugations.
These seed tubes also incorporate a small amount of peroxide into their formulation, this has been found to be a safe and effective way of deterring rodents from damaging the seed tubes.
When installing these seed tubes, be sure to install them the correct way up with the folds pointing downwards. Instructions will be included with all orders.
We have found these seed tubes fit most drills available on the market and the chart below illustrates which drills the longer (NA-S) hoses install on.
Medium Seed Tube Part Number: NA-S
Dimensions: 8-20” Operating Range, with 1 1/4” ID Coupler at both ends
John Deere Single Disc No-Till Drills. – Including 750, 1560 and 1590
John Deere Double Disc Drills – Including 8200, 8250, 8300, 8350, 8500 and 450 (please check the hose dimensions above, as some 8000 series John Deere drills are slightly different and require the NA-M hose below).