4" Shur-Lock II HDPE Couplings by DuralineFeatures:
- 4" SDR, 4.5" ± .020" 1.335"
- One person installation
- Re-enterable, no special tools required
- Air and water tight
- No I.D. reduction
- Excellent pull out strength on hdpe, PVC, FRP and steel
- No-Stop version available for confined areas or repairs (* - NS available)
- Not recommended for plow chute
- UL Listed* available coupler for under-ground electrical applications available. * UL Listed for underground applications, HDPE conduit, and wet locations.