ERP (Energy Efficiency)NTypeNon-Electric Water SoftenerMaterialPlasticIncludesull 22mm Installation Kit, Air Gap trap (for 32/40mm waste), non-electric softener unit, and instruction manualFuel TypeNGCertifications MetWRAS ApprovedBoiler TypeGas CombiSupplier Part NumberSUMO-SOFTENER-22MRange DescriptionWater TreatmentBrand NameSentinel