Retro Fit 110mm 4 inch Drain Non Return Valve with Stainless Steel Flap

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  • Rero fit into existing inspection chamber or pipe end making it EASY AND SIMPLE to install (no DIY required)
  • The BEST WAY TO PROTECT AGAINST FLOOD DAMAGE from back flow via the sewage system
  • The W.A.R. valve's unqiue design means it will fit CLAY AND PLASTIC PIPES, and opens and clears chamaber walls on bent inlet chamber pipes

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