Why this dishwasher earns its place
The HW877 is the water-softener version of the WMAXX Optimaxx 500 undercounter dishwasher. It keeps the compact commercial format at 600mm wide, 610mm deep and 850mm high, while adding a built-in softener as standard for sites where water treatment is part of the dishwasher decision.
Rated input is 3700W, and the specification carries an electrical safety notice, so installation should be checked against the site supply before ordering. Gross weight is 63.5kg, which keeps it in the undercounter class but still needs a clear delivery route and planned final position.
The machine is stainless steel with a silver finish. WMAXX describes the Optimaxx range as durable, energy-efficient, environmentally friendly and ergonomically designed, with a water management system intended to minimise energy and water usage.
Check the narrowest clear opening, then every corner, landing, step and lift from the kerb to the room.
Stated machine geometry while kept upright. Allow handling room and confirm the complete route.
Measure the clear opening
Enter the usable gap with the door fully open.
This checks straight stated geometry only.


Combisteel DRAIN PUMP FOR GLASS WASHER A£—
SL GLASS WASHER 350 DP WITH DRAIN PUMP £—
Combisteel SL GLASS WASHER 350 DP DDE I£—
SL DISHWASHER FRONTLOADER 500-230 7280.0£—
Combisteel SL DISHWASHER FRONTLOADER 503£—
Combisteel SL PASS-THROUGH DISHWASHER 72£—
Combisteel DRAIN PUMP FOR PASS-THROUGH D£—
Combisteel PL PASS-THROUGH DISHWASHER 40£—
PL PASS-THROUGH DISHWASHER 30 PRSE 7280.£—
Combisteel PL PASS-THROUGH DISHWASHER 30£—
Combisteel PL RACK CONVEYOR DISHWASHER£—
PL RACK CONVEYOR DISHWASHER CD 7280.0090£—
Combisteel PL RACK CONVEYOR DISHWASHER A£—
PL RACK CONVEYOR DISHWASHER ASC CD 7280.£—
Combisteel 700 SINK UNIT SHELF DISHWASHE£—
Combisteel 700 SINK UNIT SHELF DISHWASHE£—
700 SINK UNIT SHELF DISHWASHER FLAT PACK£—
Combisteel SL DISHWASHER FRONTLOADER 500£—
Combisteel SL DISHWASHER FRONTLOADER 500£—
Combisteel SL PASS-THROUGH DISHWASHER 72£—
700 SINK UNIT SHELF DISHWASHER FLAT PACK£—
Combisteel 700 SINK UNIT SHELF DISHWASHE£—
Combisteel GLASS WASHER ENT 400-230£—
GLASS WASHER ENT 400-230 DDE WITH DETE£—
Combisteel GLASS WASHER ENT 400-230 DP D£—
DISHWASHER FRONTLOADER ENT 500-230 7082.£—
DISHWASHER FRONTLOADER ENT 500-230 DP £—
DISHWASHER FRONTLOADER ENT 500-230 DP DD£—
PASS-THROUGH DISHWASHER ENT 400 7082.007£—
Combisteel PASS-THROUGH DISHWASHER ENT 4£—
THE Wax Optimaxx 500 WS Undercounter Dis£—
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