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Guardian G4000 Descaler 500ml

Guardian 303-3010

Availability: In stock

List Price: €15.33

Our Price: Excl. Vat: €6.99 Incl. Vat: €8.60

  • Order 12 for €6.65 (€8.18 incl. Vat) each and save 5%

Quick Overview

A ruthlessly efficient way to eliminate the build of sludge and scale from central heating systems. Guardian G4000 is the quick and easy way to eliminate cold spots and restore full heat emission to radiators & pipework, helping to improve system effectiveness & conserve energy.


Restores circulation to radiators and pipe
Multi metal treatment suitable for all types of indirect heating systems
Improves system effectiveness and conserves energy
Can be used alongside G1000 inhibitor after system cleaning
Acts as a sludge and scale remover for central heating systems


G4000 should be circulated at normal operating temperature with all valves open for a minimum of 2 hours using a SUREFLUSH power flushing system or similar.

Excessive fouling will require longer (up to 28 days) until satisfactory performance is restored. The system should be flushed properly from ALL drain points until clear.

Refill and treat with G1000 Inhibitor.

G4000 is a multi-metal treatment suitable for all types of indirect heating systems.

No neutralization treatment is required.


G4000 should be dosed at 0.5-1% of the system volume.500ml-1 litre per 100 litres of system water. 500ml of G4000 is sufficient to treat a typical 50,000 btu system.
Extra volume (2%) is required for larger systems. Overdosing does not present a problem. Dose via the F/E cistern in open systems or use a Guardian dosing tank in sealed systems. Fill by injecting via the filling loop or other suitable access point

Form: Liquid
Colour: Clear
Odour: Slight
Solubility in water: Soluble


View FileG4000 Data Sheet    Size: (326.42 KB)

Additional Information



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