40mm OsmaSoil Ring‑Seal Boss Adaptor - Wavin (Black) - 2S399B

A compact PVC‑U boss adaptor designed to integrate a 40 mm waste spigot into OsmaSoil boss sockets. Featuring a push-fit ring-seal with captive gasket and built-in keyway for correct fall alignment, this grey/black or grey adaptor (product 2S399G in grey) is ideal for connecting low-level waste or lab wash-down lines to vertical stacks. Durable, leak-proof, and certified for soil and waste systems.

• Compact & lightweight ideal for tight spaces and easy handling (approx. 45 g).
• Efficient installation push-fit boss with captive seal ensures quick, leak-resistant joints.
• Keyway alignment facilitates correct installation fall for optimal drainage.
• Durable PVC‑U construction resistant to common system chemicals
• Trusted standards matches OsmaSoil systems with full certification.