Integra Companies is now Avantor Fluid Handling.

Tri-Covers High Purity Polyethylene Foam Cap

Tri-Covers™ are high purity foam caps designed to block and protect stainless steel sanitary ends. Tri-Covers are designed to fit industry standard stainless steel ends of flex hoses, transfer panels, gas lines and other ferrules.

Tri-Covers are designed to securely lock in place over stainless steel ends to eliminate the threat of lodging inside fittings or lines. Removal of Tri-Covers is easy with their flexible nature and molded pull-tabs.

Tri-Covers are made from high purity, inert and UV stable cross-linked polyethylene foams. The foam material is FDA approved and is USP Class VI grade.

Nitrogen is the only blowing agent used when the foam is made. No greenhouse gases such as carbon dioxide or ozone depleting materials, such as CFCs or HCFCs, are introduced in the process. The foam material is entirely closed cell and does not absorb water or moisture, and will not grow bacteria or mold.

Tri-Covers have excellent chemical tolerance and can be cleaned with acid, alkaline or alcohol based cleaners. They are reusable and come in several different colors.


  • Block particle migration
  • Protect ends against drops and impacts
  • Durable
  • Particulate-free
  • Soft and flexible
  • Waterproof
  • Tear-proof
  • Easy to put on with a pull tab
  • Easy to remove with its pliable nature
  • Securely lock in place
  • Cleanable
  • Reusable
  • Autoclavable version available
  • Available in industry standard dimensions


  • US Pharmacopeia 661
  • US FDA 21 CFR
  • ISO 10993
  • Oekotex Standard Class I
  • BS 6920


Density 2.8 pcf
Cell Size 0.44mm
Tensile Strength 81 psi
Tensile Elongation 175%
Tear Strength 848 foot pound
Shore Hardness 60 at OO scale
Operating Temperature  105C max / -70C min


Integra is proud to be a UFP Technologies distributor.