Products | Door Hardware | Interlock Drainage Kit
Interlock Drainage Benefits
  • Fast and easy installation
  • Provides both interior and exterior drainage
  • High durability and corrosion resistant Class I anodized aluminum
  • Multiple output ports for 1/2” tubing for fast drainage
  • Reticulated foam filter helps keep debris out of drainage lines
  • Compatible with all FFI Panel Interlocks and others
  • For multi-panel lift slide doors
  • Compatible with FFI Uni-V Panel Interlock
  • Ask FFI about our FASTrack BOM Calculator, for quick and easy parts list and pricing!


  1. Maintain sliding doors and tracks monthly; use water & mild soap to clean away debris and dirt; use a mildly abrasive pad such as Scotch-Brite to clean any surface discoloration or rust.
  2. Read and use appropriate FFI Install Guide.

Interlock Drainage Kit

Functional Fenestration Inc (FFI) is proud to offer the Interlock Drainage Kit. A flexible interlock drainage solution to water diversion from your door opening.

Contact FFI

For CAD drawings, pricing, BOM calculator and more.