4" Compression Seal

Part Number

When a friction fit is important, you can count on the Polylok 4" Compression Seal. It is used to ensure a watertight connection when installing 4” SCH. 40 or SDR. 35 pipe into black ribbed pipe or IPEX pipe.


  • Easy to install - no tools required
  • Accepts 4" SCH. 40 and SDR. 35 pipe
  • Provides watertight connection
  • Weather and corrosion resistant
  • Requires no sealants
  • No bolts or gaskets required

Installation Instructions:

  • Use a 5” hole saw
  • Generously chamfer the 4” SCH. 40 or SDR. 35 pipe
  • Lube the pipe and seal with dish-washing liquid or a silicone based lubricant
  • Insert the pipe using a rocking motion