Polylok’s D-Box seals are the only true watertight seals on the market today. Their 4″ seal fits in both of their 12″ and 20″ plastic D-Box. It accepts 2″, 3″, 4″, and corrugated pipe. No other seals can do so much!
Details
- It provides a watertight connection
- No more different fittings to inventory
- Easy to install
- Easy tear-outs to accommodate different size pipe










