J&R Supply, Inc stocks a full line of internal and external chimney seals for storm sewer & sanitary sewer manholes as well as external joint wrap for manhole joints.

  Cretex Specialty Products Cretex Specialty Products, for over 26 years, the leader in solving manhole inflow and infiltration, has supplied the highest quality products to our customers.
  NPC FlexRib Frame-Chimney Seals Eliminates Inflow & Infiltration.
Creates a watertight seal between the frame casting and top of the manhole cone.
Can move vertically and/or laterally while maintaining a watertight seal.
Available in four widths.





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