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Siamp Storm Single Flush Cistern Valve 33A


Quick Overview

  • Can be installed into plastic or ceramic cisterns
  • Single flush, full cistern discharge
  • Actuation effort below 20 Newton
  • For lid holes ranging from 18 to 50mm, with or without collar depending on diameter
  • Adjustable stirrup that fixes the cistern lid and enables a non alignment position
  • Overflow can be cut in increments of 5mm
  • High flush rate of 3.5l/s
  • Foam pan seal supplied for compensating pan irregularity


Technical Details
  • Lid hole: Ø18 - Ø50mm
  • Drainage hole: Ø58 - Ø72mm
  • Overflow height: 180 - 240mm
  • Height with collar: 305 - 339mm (Lid hole Ø18 - Ø38mm)
  • Height without collar: 321 - 415mm (Lid hole Ø39 - Ø42mm)


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This product appears in the following categories:  Toilet Valves & Syphons

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