Oversized Roll Pin for 1700, 7200 & 7300 Kinse and John Deere

These Totally Tubular fertilizer placement system tubes are recommended if your seed tube guard roll pins become worn or hobbled out. When your roll pin holes become oblong or enlarged, your tube system will not mount securely to your row units, creating the possibility of incorrectly placed fertilizer. The roll pin holes on these fertilizer tubes are enlarged to 13/32" and allow for a larger mounting bolts and a tighter fit.
The Totally Tubular Fertilizer Placement System enables precise placement of starter fertilizer approximately 1/4" below the seed bed to optimize starter fertilizer root uptake and effectiveness. These durable 3/8" stainless tubes are custom manufactured to fit the planter models noted below and include all-stainless mounting hardware—no welding required! Totally Tubular systems are designed to outfit with John Guest 3/8" tube fittings (not included). The optional seed bounce flap (sold separately) closes the opening between disc openers and assures correct seed placement by eliminating bounce and ricochet during operation.

*TT002-OS is constructed of thicker stainless steel and will NOT fit John Guest tube fittings.

Recommended: Replace disc openers when you install the tube systems. Check valves should also be utilized with these fertilizer tubes, located close to the tube itself. Be sure to see our diaphragm check valves!

Image: Hole size comparison on a standard roll pin tube (gold) and an oversized roll pin tube (silver)