Gledhill PLUDR120SL 120L StainlessLite Plus Slimline Direct Unvented Cylinder

The Gledhill PLUDR120SL is a duplex stainless steel unvented hot water cylinder from the StainlessLite Plus Slimline range. It delivers mains-pressure hot water for high-flow showers and baths without a boost pump, making it perfect for domestic properties with limited space.

This direct model is designed for electric heating, including economy tariffs and photovoltaic panels. It features two 3kW Incoloy 825 immersion heaters (one primary, one backup/off-peak) and comes with a 25-year warranty. The slimline 475mm diameter fits tighter installation areas than standard 550mm models while maintaining 122L capacity.

Key Features

• Duplex stainless steel construction with post-weld treatment for durability
• Two 3kW Incoloy 825 immersion heaters for flexible electric heating
• Factory-fitted temperature and pressure relief valve (6 bar / 95°C)
• 50mm HCFC-free insulation for low heat loss
• WRAS, NSF and WRC approvals
• 90° elbow and drain valve supplied as standard
• Compression fittings included
• Expansion vessel and G3 kit components supplied
• ErP rating C with 47W heat loss
• 25-year manufacturer warranty

Benefits

• ✔ Provides mains-pressure hot water in space-restricted properties
• ✔ Enables off-peak electricity use for lower running costs
• ✔ High flow rates for multiple outlets without pumps
• ✔ Lightweight design (23kg empty) for easier handling and installation
• ✔ Corrosion-resistant duplex stainless steel for long service life
• ✔ Complete with all necessary safety and connection fittings
• ✔ Suitable for new installs or replacement in domestic settings
• ✔ Trade-friendly with full UK approvals and support

Technical Specifications

• MPN: PLUDR120SL
• Capacity: 122 litres
• Height: 1248 mm
• Diameter: 475 mm
• Weight (empty): 23 kg
• Weight (full): 143 kg
• Heat up time: 119 minutes
• ErP rating: C
• Heat loss: 47 watts
• Maximum working pressure: 6 bar
• Number of immersions: 2
• Secondary return: No

What’s in the Box?

1 x Gledhill PLUDR120SL StainlessLite Plus Slimline Direct Unvented Cylinder, 2 x 3kW Incoloy 825 immersion heaters, Tundish, Drain valve, Compression fittings, Temperature & pressure relief valve, 3 bar inlet control group, Flexible hose and expansion vessel bracket, Technical/user literature.