Attributes of interface connection

  • Interconnection fittings are durable and leak-free in daily use over the life of the product.
  • Interconnection provides clear user feedback when connection is fully made.

Key indicators

  • Low insertion force, (e.g., >80% of users find it “easy”).
  • Design prevents incorrect assembly (i.e., parts only assemble in one correct way).
  • Filter element is positively retained in platform socket—will not fall out if inverted.
  • Durability: assume 1 cycle per day over 6 months with a multiplier (safety factor) of 2; for example, minimum 360 insertion/removal cycles before failure for a filter element that will last 6 months.
  • Regular cleaning with abrasives does not degrade interconnect integrity over the life of the product.
  • Assembly and disassembly should not allow untreated water to leak into the clean water container.

Supporting evidence