Item # Description Case Qty
  5141PR-20 20mm Silver Pressure Release Seal, 0.131″ PTFE/Molded Gray Butyl 100 pieces View Product
  5142PR-20 20mm Silver Pressure Release Seal, 0.140″ PTFE/Rubber PharmaFix Septa 100 pieces View Product
  5143PR-20 20mm Silver Pressure Release Seal, 0.100″ PTFE/Silicone 100 pieces View Product

Pressure release seals are designed to open when internal pressure exceeds 3.0+/-0.5 bar.