WB-EXT Slimline 300 Esybox Variable Speed 2502110

The WaterBoost WB-EXT Slimline 300 Esybox is a high-performance variable-speed boosting system for 3–4 bedroom homes combining a 300-litre WRAS-approved slimline tank (600mm dia × 1200mm high) with the DAB Esybox external variable speed pump. Delivering 80 l/min at 3 bar — with WiFi, DConnect app, H2D technology, Google Home and Alexa voice control — it is the most capable system in the WB-EXT slimline range.

The Esybox sits alongside the tank rather than inside it, keeping the pump fully accessible for servicing at any time. Running at just 43 dB(A), it is exceptionally quiet for an 80 l/min pump. The tank connects directly to the mains via the pre-fitted ¾" ball float valve. Fully pre-built — no site assembly required. At 600mm diameter, the tank fits through a standard doorway.

Supplied with union connections, ¾" ball float valve, 600mm hose, and By-law 30 kit. The tank carries a 5-year warranty and the DAB Esybox a 3-year warranty. Please contact us for delivery timescales.