Make routine cleaning jobs quick and effective with the Kärcher K4 Classic Pressure Washer — a compact, powerful pressure washer designed for everyday moderate‑duty cleaning tasks around the home and yard. Whether you’re tackling muddy patio slabs, decking, garden furniture, driveways, vehicles or bikes, this unit delivers dependable performance with user‑friendly features that trade pros and DIYers appreciate.
Built with Kärcher’s reputation for reliability and smart design, the K4 Classic combines portable convenience with versatile cleaning power — ideal for homeowners and small‑scale landscaping teams looking to keep surfaces clean without setting up heavy‑duty equipment.
Key Features
Adjustable Pressure Range: Clean with confidence — pressure is adjustable between 20–130 bar, so you get the right force for cleaning patios, walls, vehicles or garden tools.
Compact & Portable Design: Lightweight and easy to manoeuvre with a clever space‑saving footprint, making storage in vans or sheds simple.
Telescopic Handle & Easy Setup: Telescopic aluminium handle adjusts for comfortable transport and collapses for compact storage. Quick‑connect fittings speed up setup and breakdown
Integrated Hose & Accessory Storage: Neatly holds the 6 m high‑pressure hose and accessories on the unit to reduce clutter and keep everything ready to go.
Detergent Suction Capability: Connect detergent directly for deeper cleaning and better surface care.
* Effective from 3 December 2025 * Free delivery on order over €400, applies to Small & Light, Large & Heavy items within zone 1 only.
Zone Indicator:
To help you understand delivery availability, every item displays a zone icon, icons appear on the top-right corner of each product image:
Types of goods
Available zones
Descriptions
Small & light items
All Zone area
Items under 20kg weight & under 2m long, (some fragile items may not be included e.g. glass/mirrors)
Large and bulky items Extra Large items
Zone 1 & 2 only
Wet & hazardous bagged, items over 20Kg weight & oversized; Euronics white goods, TVs of all sizes.
Large Paint items (6L / 6L+)
Zone 1 only
Large hazardous items (6L+) - available for collection
Available zones
Indicator
Descriptions
All zone area
This icon with all zone area in green, indicates this items can be shipped to all Zone.
Zone 1 & 2 only
Zone 1 & 2 in green and zone 3 greyed out, indicates this product can only be shipped to Zone 1 and 2
Zone 1 only
Zone 1 in green zone 2 and zone 3 are greyed out, indicates this product can only be shipped to Zone 1 only.
Old Appliance Collection:
When you buy a large appliance, we’ll collect your old one for free through WEEE Ireland. Please ensure it is uninstalled, disconnected, and ready for pickup. Collection is like-for-like and takes place at the front door or apartment entrance. Restrictions may apply based on access and item type.
At TJ O'Mahony we will exchange or refund any Retail unused product returned to us in its original condition within 30 days of receiving it (*)You can return any unused product to us in its original condition for a full refund or exchange within 30 days of delivery.
This right to return does not apply to products that are non stock and only available to order such as catalogued doors, catalogued bathroomware and mixed paints which are made especially for your order.
Please note that we are unable to accept returns on certain bagged building products and materials, including (but not limited to) hard wall, cement, bonding, slates, and ridges. We appreciate your understanding and recommend checking product requirements carefully before purchase.