FieldShield Direct Bury 14/10 mm Microduct is a durable and crush resistant micro-conduit designed to increase the protection of fiber while decreasing installation and maintenance expenses. Manufactured using high density polyethylene (HDPE), FieldShield Direct Bury 14/10 mm Microduct offers superior durability and protection.

Technical Specifications

Length Non-toneable: 1,500 feet per spool; Toneable: 1,250 feet per spool; Black Microduct: 4,922 feet per spool
Outside Diameter Non-toneable: 0.551” (14 mm); Toneable: 0.66” (16.7 mm)
Inside Diameter 0.390" (9.8 mm)
Wall Thickness 0.079" (2 mm)
Slip Layer Minimum 0.004" (0.102 mm)
Ovality ≤ 5%
Installation Tension Non-toneable: 264 lbf; Toneable: 346 lbf
Bend-Radius Non-toneable: 8” radius minimum; Toneable: 10” radius minimum
Material High Density Polyethylene (HDPE)
Operating Temperature -40°F to 176°F (-40°C to 80°C)
Installation Temperature -14°F to 158°F (-26°C to 70°C)
Color Orange or Black
Tone Wire Insulated Stranded Copper
Tone Wire Diameter 0.032” (0.813 mm) / 20 AWG
Markings Part number, lot number, footage markers every two feet
Spool Size 12” ID x 24” OD x 20” IW; Black: 40" OD x 24" W
Weight Non-toneable: 72 lbs; Toneable: 95 lbs; Black: 375 lbs.

Features & Benefits


  • Compliant to Telcordia GR-3155


  • Quick and easy to install
  • Direct Bury Microduct has high tensile strength and crush resistance that withstands all types of ground implementations including open trenching, vibratory plowing, micro-trenching and directional boring
  • Made from HDPE to prevent degradation


  • Optional external tone wire simplifies ground locating
  • Industry standard orange provides high visibility for direct bury applications
  • Standard nylon pull string simplifies deployment of fiber
  • Smooth core slip lining reduces drag co-efficient enabling fiber to be pushed or pulled with minimal resistance


  • Maximizes capacity of existing conduit previously considered exhausted
  • Provides industry leading protection for “last mile” feeds