Shield Ag 3/8" NH3 & 3/4" Vapor Tube | DF-1PM/3/4DA 

From the Toolbar to the Soil, Shield Ag manufactures a complete line of fertilizer application gear, conservation and primary tillage tools, and an extensive line of long-wear-life subsoiler, disc ripper, chisel, fertilizer knife, cultivator, planter, and grain drill parts. 

DF deep furrow knives are supplied with the DF1PM improved casting.

DF-1PM knives are 16” tall with universal mounting hole/slot self-sealing in most applications. 

Features: 

• 1/2 x 2-1/2 x 16" tall, hole-and-slot-shank
• 3/8" drilled NH3 tube
• 3/4" Vapor (cooler) tube
• Weight:7.8 
• Deep furrow knife