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Sentinel SESI 22mm Electrolytic Inhibitor

£65.52 (£54.60 exc. VAT)
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New Sentinel SESI 22mm Electrolytic Inhibitor Sentinel AWPROTECT-22B
£ 65.52 New
Limescale build-up inside household appliances can cause them to run less effectively, increases the likelihood of premature breakdown and impairs the efficiency of heat transfer. The Sentinel SESI is a cost-effective scale inhibitor solution to help tackle limescale build up and could save up to £130 a year on typical energy bills.

Sentinel SESI is an electrolytic scale inhibitor, a cost-effective solution to help tackle limescale build up. It provides a long term solution which requires no maintenance and protects the whole house without introducing any undesirable chemicals to drinking water. Sentinel SESI is easy to fit, WRAS-approved and comes with a 5 year guarantee.


Outer Body Copper
Anode Material Bespoke Zinc Alloy
Test Regulations (UK) WRAS Certification 0706038
Connection 22mm* Compression
Design Flow 0-37l/min (2.22m 3/hr)
Length 190mm
Width 35mm (max)
Weight 0.40kg


  • Protects against limescale encrustation
  • WRAS approved
  • 5 year guarantee
  • Performance proven by independent studies
  • Available in 15mm and 22mm
  • Recommended by the Compliance Guide to Part L1 of the Building Regulations

Sentinel SESI 22mm Electrolytic Inhibitor Reviews

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