Polylok Extend and Lok Adapter | Inlet/Outlet Pipe Extension 3" or 4"

We look at problems as opportunities. We heard from many of our customers that they love our filters but they were having difficulty installing them into existing tanks. Why? Because the inlet or outlet pipes weren’t long enough to accept the filter tee or baffle. Our Extend & Lok™ is a simple, easy to use solution that can extend the inlet or outlet pipe and make filter and/or baffle installation a snap. In 2005 we introduced two Extend & Lok products.

Installation Instructions

Makes Filter Installation EASY! Easy to install in hard to reach places. We have developed a simple way to install filters in tough to reach areas with the new Extend & Lok™ by Polylok. No more fighting with outlet pipes that are flush against the septic tank wall. Simply hammer in the PVC friction fit Extend & Lok™ and that’s it! The filter or inlet tee now can easily be installed and centered under the riser. Extend & Lok™ Makes for Easy Installation on Existing Systems

• Fits any 4'' or 3'' pipe
• Centers filter or tee under riser
• Easy Installation
• No gluing necessary

• 4" Extend & Lok^TM
• Installation
• 3" Extend & Lok^TM