Redring Cold Water Pack Expansion Vessel Pressure Reducing Check Valve 87-783101 Redring Expansion Vessel Cold Water Pack 87783101 To be used with the Redring EW and MW range of unvented water heaters either when the water supply pressure is ABOVE 6 Bar OR when the cold water pipe between the heater and the first draw off point (tap) is not long enough to accomodate the expansion of hot water: EW10 or MW10-Less than 3M of 15mm pipe. EW15 or MW15-Less than 4.5M of 15mm pipe. Please Click Here To View The Installation Manual The Pack Includes: Expansion Vessel (Dia 120mm x Ht 235mm) Pressure Reducing Valve Check Valve
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