Family image shown — colour and finish may differ. Part photo coming soon.
Sealproof® Conduit and Connectors · Non-Metallic Liquid Tight Conduit
Flexible Liquid Tight Conduit, 3-1/2" — Special Order
Part no.
9439
UPC 658746943909 - UL Listed · E129973 · CSA Certified
- Liquid-tight · Type B (LFNC-B)
- Special order
3-1/2-inch flexible non-metallic liquid-tight conduit (Type B, LFNC-B) — a PVC raceway that keeps oil, water and sunlight off the conductors inside. Terminate it with Sealproof liquid-tight connectors.
- Availability
- Special order — made to order; ask us for lead time and minimum run
- Trade size
- 3-1/2"
- Colour
- Gray
- Material
- Flexible PVC
- Listing
- UL Listed, file E129973; CSA Certified · Type B (LFNC-B)
- Temperature rating
- 105°C dry / 60°C wet / 70°C oil resistant (90°C wet available on request)
Features
- Listed under the Underwriter’s Laboratories
- CSA Certified by Canadian Standards Association
- 3/8 inch through 4 inch trade size
- Use with SEALPROOF® straight or right angle connectors
- May also be used with metallic connectors for liquid-tight conduit
- Resists corrosion, abrasion, oil, water, acid, metal shavings, and rough environments
- Resists abuse, pull and crushing
- UL Rating: 80°C dry, 60°C wet. 70°C oil resistant
- CSA rating – 18°C to 75°C
- Additional temperature ratings available. Contact us for details
- Outdoor, sunlight resistant, direct burial
- Smooth inside for easier wire pulling, no hazardous sharp edges or burrs, will not damage conductors
- Lightweight and lower installed cost
- Quick installation, cuts with utility knife or PVC cutter
- Integral rigid & flexible PVC construction. Phthalate Free.
Specifications
- Part number
- 9439
- UPC / GTIN-12
- 658746943909
- I.D. / trade size
- 3-1/2"
- Colour / finish
- Gray
- Listing
- UL Listed, file E129973; CSA Certified verify at UL Product iQ ↗
- Material
- Flexible PVC
- Temperature rating
- 105°C dry / 60°C wet / 70°C oil resistant (90°C wet available on request)
- Brand
- Sealproof — a Superflex Ltd. brand
Dimensions
| O.D. | 3.960 – 4.000 in |
|---|---|
| I.D. | 3.500 – 3.590 in |
O.D. outside diameter · I.D. inside diameter. Nominal, in inches (LFNC-B 105°C series spec sheet).
Superflex Ltd. · 400 S 2nd St, Elizabeth, NJ 07206 · 1-800-394-3665 · sales@superflex.com · superflex.com · Printed October 1, 2026. Specifications subject to change; confirm listings with the certifying body.