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professional-grade tile backer board kit for waterproofing wet room and bathroom floors prior to tiling
In silent mode the indoor unit drops to as low as 21–28 dB(A) — quieter than a whispered conversation — making this ideal for bedrooms
✅ Essential companion products: Upstream Kit 22/28 mm (11007380) for first unit + Add-on Kit (11007327) for each extra accumulator
and enterprise scalability for maximum energy independence
03 Energy Class A+++ @ 35°C
Sentinel X300 Universal Cleaner 1 Litre - New System Flux & Debris Removal Drayton professional-grade tile backer board kitThe Sentinel X300 Universal Cleaner (MPN X300) is a powerful, heavy duty cleaner specifically designed for new central heating systems up to six months old, where installation debris such as flux residue, swarf, and manufacturing grease can hinder even heat distribution. Circulated at first fill, X300 passivates metal surfaces and prevents harmful copper deposition, preparing the system properly for long term protection with Sentinel X100 Inhibitor. 1
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