Flat gasket for the inlet nozzle of a sand filter
€1.72 incl. VAT
The flat inlet gasket is an original spare part for the inlet nozzle of Azuro 5 and G S144T sand filters.
- Flat black ring-shaped gasket
- Seals the inlet nozzle
- For Azuro 5 and G S144T
Flat gasket for the inlet nozzle of a sand filter
The inlet gasket is the flat ring that seals the connection at the inlet nozzle of the sand filter. It is black and flat. It is suitable for Azuro 5 and G S144T filters. With a sturdy gasket the connection does not lose water.
The part is installed at the inlet of the Azuro PRO 5 m³/h sand filtration unit, while at the outlet works the O-ring for the outlet connector.

| Manufacturer code | GL250S02 |
|---|---|
| Manufacturer | Mountfield |
| Type | flat gasket |
| Colour | black |
| Installation location | filter inlet nozzle |
| Suitable for | Azuro 5 and G S144T sand filters |
Suitable for
- G S144T sand filter, 2014-2020
code 3BTE0418 - Azuro EM 5 sand filter, 2020-2021
code 3BTE0521 - Azuro 5 sand filter, from 2021
code 3BTE0542
The original gasket has the same shape as the one in the filter. That is why it sits evenly. Order it from Baseini.NET and stop the leaks.
You will find more original spare parts for filters and equipment in our catalogue, along with the Glong FCP-250S filter pump and a suitable sand filtration unit for pools.
Inlet gasket – what it is for
Water from the pump enters the filter through the inlet nozzle. The flat gasket closes the gap between it and the body. This way the connection stays watertight under pressure.
When to replace the gasket
Replace the gasket if it is flattened, cracked or has hardened. Replacement is also needed if the connection drips. This often happens after a few seasons.
How it is installed
First switch off the pump and release the pressure in the filter. Then disassemble the inlet connection and remove the old gasket. Clean the area and fit the new flat one. Reassemble and check for leaks.
What to check before ordering
Before ordering, check your filter. This gasket is for the inlet nozzle of the Azuro 5 and G S144T. Do not confuse it with the ring for the outlet.
- Find your filter model in the list below
- Check where the water is leaking from
- Also inspect the outlet ring
- Replace both gaskets together if they are worn
Maintenance tips
Clean the seat before installation. Do not use sharp objects that scratch the surface. Check the connections at the start of the season.
Why choose an original part
The original gasket keeps the intended tightness of the connection. An unsuitable gasket may not sit evenly and may start to drip. That is why it is best to choose a part with the manufacturer's code. This way the filter runs smoothly and the connection stays dry throughout the season.
Not sure this is your part?
Send us the model of the unit and a photo of the old part. We will check compatibility before you order.
| Manufacturer | Mountfield |
|---|---|
| Manufacturer code | GL250S02 |
| Type | flat gasket |
| Colour | black |
| Installation location | filter inlet nozzle |
| Suitable for | Azuro 5 and G S144T sand filters |
Czech Republic · Exclusive representativeMountfield – family pools from the Czech Republic.
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