The series of VA-approved rat blocker/rat security TX11 produced in dimensions from Ø100 up to Ø200mm, including for CIPP lined pipe in the above dimensions. The rat blocker is made of treated stainless steel AISI 316 Installation of the rat blocker is a simple process, and is done and from ground level with the mounting-rod, regardless of depth. All rat blocker have an open bottom, so there aren’t any obstacles in the bottom channels of the well. The rat blocker is fitted with removable, reversible valves so that it can be installed in the inlet and outlet side.