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The MAINSBOOST MB 100S Add-on Unit can be used individually or in multiples to expand the cold water storage capacity of a MAINSBOOST vessel system. The MAINSBOOST MB 100S features a nominal vessel size of 100 litres and a pressurised cold water water storage capacity of approximately 55 litres. Each unit is supplied with a comprehensive fittings kit which includes an isolation valve. Constructed from an epoxy coated steel body and a highly durable virgin butyl diaphragm, all MAINSBOOST vessels are supplied with a 5 year warranty.
Ideal Bathrooms (Wolseley) Limited. Registered Office: 2 Kingmaker Court, Warwick Technology Park, Gallows Hill, Warwick, CV34 6DY.Registered in England and Wales, Company Number: 13860436. VAT Number: 362 0233 93. Copyright © 2026 Ideal Bathrooms (Wolseley) Limited. All rights reserved.
Ideal Bathrooms (Wolseley) Limited. Registered Office: 2 Kingmaker Court, Warwick Technology Park, Gallows Hill, Warwick, CV34 6DY. Registered in England and Wales, Company Number: 13860436. VAT Number: 362 0233 93. Copyright © 2026 Ideal Bathrooms (Wolseley) Limited. All rights reserved.
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