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ASA Commercial Subsills

ASA Commercial Subsills. We offer a wide range of subsills to suit every type of window system offered within our range. Many offsets are available, as well as the choice of wet sealing or back bulb-sealing. All our subsills are supplied slotted, ready to set and assemble your windows.

  • Suitable for use with 101.6mm Centre Glazed system, Front Glazed 103.6mm system & Flush Front 100mm system
  • (SF608 to suit 150mm systems)
  • Supplied slotted
  • Readily available in mill and natural anodised