WB-EXT Slimline 500 Esybox Variable Speed 2503110

The WaterBoost WB-EXT Slimline 500 Esybox is a high-performance, high-storage variable-speed boosting system for 3–5 bedroom homes. A 500-litre WRAS-approved slimline tank (700mm dia × 1500mm high) pairs with the DAB Esybox external variable speed pump, delivering 80 l/min at 3 bar and up to 6.5 bar maximum — with WiFi, DConnect app, H2D technology, Google Home and Alexa voice control.

The Esybox sits alongside the tank for full pump accessibility at any time, running at an exceptionally quiet 43 dB(A). The tank connects directly to the mains via the pre-fitted ¾" ball float valve. Fully pre-built and ready to install — no site assembly required.

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. Delivery is typically 1–2 working days.