National Shower Spares
VR4601CA1018U Honeywell Gas Valve Only - Z170664 (Z108128). The valve is a gas distribution mechanism within the boiler. When there is a requirement for gas within the burner, the gas valve opens, allowing gas to flow through the valve into the pilot assembly or the burner. Genuine brand new NSS product, covered by a NSS manufacturer's guarantee.
Direct Heating SparesUCP Gas Valve Only U170664. Genuine brand new UCP product, covered by a manufacturer's guarantee.
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