The Bosch Serie 4 WAK28161GB is a freestanding 7 kg washing machine known for its efficiency and specialized drum design. Below are the key technical specifications and features for this model.
Core Performance
 * Capacity: 7 kg (ideal for medium-sized households)
 * Maximum Spin Speed: 1400 rpm
 * Energy Efficiency Class: A+++ (based on the older EU rating system)
 * Annual Energy Consumption: 174 kWh (based on 220 standard wash cycles)
 * Annual Water Consumption: 9680 Litres
 * Spin-Drying Efficiency: Class B (53% remaining moisture)
 * Noise Levels: 56 dB during washing / 75 dB during spinning
Physical Dimensions
 * Height: 84.8 cm
 * Width: 60.0 cm
 * Depth: 59.0 cm (excluding door protrusion)
 * Porthole Opening: 30 cm diameter with a 165° door opening angle
 * Installation: Freestanding (can be built-under/slid under a standard countertop)
Key Features & Technologies
 * WaveDrum: A unique drum structure with a droplet shape and asymmetrical paddles for a wash that is both gentle on delicates and intensive on stains.
 * AntiVibration Design: Specially designed side walls that provide greater stability and reduce vibration for a quieter cycle.
 * 3D AquaSpa Wash System: A system with a cascade effect that ensures faster and more thorough water penetration of the laundry.
 * SpeedPerfect: A high-performance program that can reduce wash time by up to 65% without compromising cleaning results.
 * Reload Function: Allows you to pause the machine and add forgotten items of clothing after the cycle has already started.
Programs & Functions
 * Specialized Programs: Mixed Load, Delicates (30^{\circ}\text{C}), Super Quick 15 min / 30 min, Allergy+, and Wool Handwash.
 * Control Interface: A fully electronic control dial for all wash programs, complemented by an LED display that shows program progress, spin speed, and time remaining (up to 24-hour delay).
 * Safety Systems: * Multiple Water Protection: Prevents flooding.
   * Foam Detection: Detects and clears excess suds.
   * Safeguard Monitoring: Automatically adjusts load distribution to protect the machine's internal components.
   * Child Lock: Disables the control panel during use.