Panasonic 300L Pre-Plumbed Cylinder with 70L Buffer Tank

The Panasonic 300L Duo Cylinder with Integrated 70L Buffer is designed to simplify heat pump installations by combining two essential components into one compact, pre-assembled system. Suitable for all Panasonic Aquarea monobloc and split units, it eliminates the need for a separate buffer tank and reduces onsite labour time.

Constructed from premium stainless steel, the cylinder delivers long-lasting reliability and excellent corrosion resistance. The integrated buffer improves system stability and prevents unnecessary heat pump cycling, especially in low-load conditions.

Key Features

• 300L stainless steel DHW cylinder + 70L buffer tank in one casing

• Designed for Panasonic Aquarea A2W heat pumps

• Faster installation – fewer pipes, connections & components

• Compact footprint – replaces a standalone cylinder + separate buffer

• 3m² coil surface area for fast heat transfer

• Includes:

  • 3-port DHW diverter valve

  • Full G3 kit with tundish & expansion vessel

  • Accessory pack: drain cock, hose, tee piece

  • 20m cylinder sensor (PAW-TS2)

• UK manufactured

• Suitable for new builds & large retrofit projects

• Panasonic extended warranty available for installed components

Ideal For

• Larger homes with high DHW demand

• Installers wanting reduced installation time

• Tight plant spaces where a separate buffer won’t fit