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Anhydrous Knives for NH3 Applications | Safe, field-tested.

Browse our range of anhydrous knives for accurate NH3 fertilizer placement today. The anhydrous ammonia knives you see here are engineered for durability, safety, and performance in agricultural use. Built for efficiency, they help farmers maximize crop yield while minimizing soil disturbance and nutrient loss.

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  • CDS-John Blue Heavy Duty NH3 (Anhydrous Ammonia) CAPSTAN Knife A-720C-6S-Mid-South Ag. Equipment
    Up to 14% off
    CDS-JOHN BLUE

    CDS-John Blue Heavy Duty NH3 (Anhydrous Ammonia) CAPSTAN Knife A-720C-6S

    $105.97 USD
    $105.97 USD $122.94 USD SAVE $16.97
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  • CDS-John Blue Heavy Duty NH3 (Anhydrous Ammonia) Knife A-720C-3S-Mid-South Ag. Equipment
    Up to 10% off
    CDS-JOHN BLUE

    CDS-John Blue Heavy Duty NH3 Anhydrous Knife A-720C-3S

    $100.00 USD
    $100.00 USD $111.51 USD SAVE $11.51
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  • CDS-John Blue Heavy Duty NH3 (Anhydrous Ammonia) Knife A-720-3S-Mid-South Ag. Equipment
    Up to 19% off
    CDS-JOHN BLUE

    CDS-John Blue Heavy Duty NH3 (Anhydrous Ammonia) Knife A-720-3S

    $73.00 USD
    $73.00 USD $89.77 USD SAVE $16.77
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Frequently Asked Question

Yes. Constructed from carbon and stainless steel, they resist corrosion and maintain durability even after repeated contact with NH3.

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