Vaillant
Vaillant Water Filter 115318
Vaillant water filter, part number 115318, for MAG 14-0/0 and MAG Mini 11-0/0 appliances.
At a glance
- Part type: water filter
- Appliance family: MAG water heaters
- Also known as 1387298
£9.67
£8.06 ex. VAT · VAT at 20%
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The Vaillant 115318 is a water filter used in Vaillant MAG water heaters. It sits in the cold water inlet path and traps particulate matter and scale debris before the water reaches the appliance's heat exchanger and waterways. Fitting a clean filter protects the internal components from blockages and keeps hot water flow consistent.
Signs this part needs replacing
- Reduced hot water flow at the tap, particularly where the appliance has previously performed well
- Visible scale, grit or discoloured particles in the water supply at the outlet
- Repeated scale-related faults or blockages in the appliance waterways
- Water weeping from around the filter housing or inlet connection
- Filter element visibly clogged, deformed or degraded on inspection
Before you order
- Confirm the appliance model and variant against the fitment list above, as MAG models differ by suffix
- Check the existing filter part number or marking on the appliance before ordering
- Inspect the filter housing and seals at the same time, as these may also need attention
- Verify the appliance's installation date falls within the relevant production period for your model
Compliance
| Alternative numbers | 1387298 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VAILLANT MAG 14-0/0 XI (2004-2009) | — | — | — | |
| VAILLANT MAG 14-0/0 XZ (2004-2009) | — | — | — | |
| VAILLANT MAG mini 11-0/0 XI (2004) | — | — | — | |
| VAILLANT MAG mini 11-0/0 XZ (2004) | — | — | — |
Documents & drawings
Everything we hold for this part. Where a document exists but we don't hold it, the technical team will source it from the manufacturer — usually the same working day.
No documents held for this part. The technical team will source them from the manufacturer — usually the same working day.
No technical questions yet for this part.
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