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Product description

Experience superior filtration and crystal-clear water with the Mega MFS side mount pool sand filter. Constructed from premium-grade, high-density polyethylene and featuring innovative, one-piece blown construction with ABS laterals, this filter delivers heavy-duty performance and reliability for most domestic swimming pools and spas.

The Mega MFS has a six-way side valve with a unique one-piece twist lock that has been designed to allow easy tool-free servicing and maintenance. The maximum working temperature is 50°C and the maximum working pressure is 2.8 bar, the filter comes complete with an easy-to-read pressure gauge.

Discontinued model, last few remaining – please note box may not be pristine

Key features

Compact and heavy duty

Valve lock is designed to allow 360 degree rotation to simplify installation

Operating pressure 2.5 bar, maximum temperature 50°C

Easy-to-use bayonet-locked multi-port valve lets you select valve/filter operations with ease

50mm / 1½ inch (63mm / 2 inch for MFS27 and MFS31) stepped glue socket union adaptors for connection to your pool pipework (please note that for pipe measurement, Imperial = Internal Bore and Metric = Outside Diameter).

Downloads

Specifications

Flowrate Max.
7.5 m³/h
Size
17 inch
Sand Required
40 Kg
Bags of sand
2
Estimated Pool Size
37.5m³
Connections
1½ inch / 50mm
Flowrate Max.
10.5 m³/h
Size
20 inch
Sand Required
70 Kg
Bags of sand
3
Estimated Pool Size
52.5m³
Connections
1½ inch / 50mm
Flowrate Max.
14.3 m³/h
Size
24 inch
Sand Required
125 Kg
Bags of sand
5
Estimated Pool Size
71.5m³
Connections
1½ inch / 50mm
Flowrate Max.
20.3 m³/h
Size
27 inch
Sand Required
185 Kg
Bags of sand
8
Estimated Pool Size
101.5m³
Connections
2 inch / 63mm
Flowrate Max.
24.7 m³/h
Size
31 inch
Sand Required
320 Kg
Bags of sand
13
Estimated Pool Size
123.5m³
Connections
2 inch / 63mm
Flowrate Max.
30.9 m³/h
Size
35 inch
Sand Required
430 Kg
Bags of sand
18
Estimated Pool Size
154.5m³
Connections
2 inch / 63mm

Filter size guide

<20m³
14 inch / 350mm
20-30m³
16 inch / 400mm
30-40m³
18 inch / 450mm
40-60m³
21 inch / 500mm
60-80m³
25 inch / 650mm
80-100m³
28 inch / 700mm

Filter media

We also stock Filter sand for our filter sets, the recommended size of sand is 0.4 to 0.8 mm, sand is supplied in 25Kg bags.

Please note the sand required is a specific grade, please do not use builders’ sand or play sand as this may block or damage your filter.

Operation

The easy to use six-way side mounted multi-port valve lets you select any of the operations with a simple lever action, the functions of the multi-port valve are filtration, waste, closed, backwash, rinse and recirculating.

Please note you must always switch your pool pump off before changing the position of the multi-port valve.

Replacing an existing filter

If you are replacing a filter that forms part of an existing system then your replacement should match the size of the existing filter.

For example if you already have a 21 inch filter and 1.0HP pump on a 20m³ pool then you would still need 21 inch filter, alternatively you would need to replace both the pump and filter with a smaller selection as per our filter size guide.

Product Description

Experience superior filtration and crystal-clear water with the Mega MFS side mount pool sand filter. Constructed from premium-grade, high-density polyethylene and featuring innovative, one-piece blown construction with ABS laterals, this filter delivers heavy-duty performance and reliability for most domestic swimming pools and spas.

The Mega MFS has a six-way side valve with a unique one-piece twist lock that has been designed to allow easy tool-free servicing and maintenance. The maximum working temperature is 50°C and the maximum working pressure is 2.8 bar, the filter comes complete with an easy-to-read pressure gauge.

Discontinued model, last few remaining – please note box may not be pristine

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Mega MFS Side Mount Pool Sand Filter

Product description

Experience superior filtration and crystal-clear water with the Mega MFS side mount pool sand filter. Constructed from premium-grade, high-density polyethylene and featuring innovative, one-piece blown construction with ABS laterals, this filter delivers heavy-duty performance and reliability for most domestic swimming pools and spas.

The Mega MFS has a six-way side valve with a unique one-piece twist lock that has been designed to allow easy tool-free servicing and maintenance. The maximum working temperature is 50°C and the maximum working pressure is 2.8 bar, the filter comes complete with an easy-to-read pressure gauge.

Discontinued model, last few remaining – please note box may not be pristine

Key features

Compact and heavy duty

Valve lock is designed to allow 360 degree rotation to simplify installation

Operating pressure 2.5 bar, maximum temperature 50°C

Easy-to-use bayonet-locked multi-port valve lets you select valve/filter operations with ease

50mm / 1½ inch (63mm / 2 inch for MFS27 and MFS31) stepped glue socket union adaptors for connection to your pool pipework (please note that for pipe measurement, Imperial = Internal Bore and Metric = Outside Diameter).

Downloads

Specifications

Flowrate Max.
7.5 m³/h
Size
17 inch
Sand Required
40 Kg
Bags of sand
2
Estimated Pool Size
37.5m³
Connections
1½ inch / 50mm
Flowrate Max.
10.5 m³/h
Size
20 inch
Sand Required
70 Kg
Bags of sand
3
Estimated Pool Size
52.5m³
Connections
1½ inch / 50mm
Flowrate Max.
14.3 m³/h
Size
24 inch
Sand Required
125 Kg
Bags of sand
5
Estimated Pool Size
71.5m³
Connections
1½ inch / 50mm
Flowrate Max.
20.3 m³/h
Size
27 inch
Sand Required
185 Kg
Bags of sand
8
Estimated Pool Size
101.5m³
Connections
2 inch / 63mm
Flowrate Max.
24.7 m³/h
Size
31 inch
Sand Required
320 Kg
Bags of sand
13
Estimated Pool Size
123.5m³
Connections
2 inch / 63mm
Flowrate Max.
30.9 m³/h
Size
35 inch
Sand Required
430 Kg
Bags of sand
18
Estimated Pool Size
154.5m³
Connections
2 inch / 63mm

Filter size guide

<20m³
14 inch / 350mm
20-30m³
16 inch / 400mm
30-40m³
18 inch / 450mm
40-60m³
21 inch / 500mm
60-80m³
25 inch / 650mm
80-100m³
28 inch / 700mm

Filter media

We also stock Filter sand for our filter sets, the recommended size of sand is 0.4 to 0.8 mm, sand is supplied in 25Kg bags.

Please note the sand required is a specific grade, please do not use builders’ sand or play sand as this may block or damage your filter.

Operation

The easy to use six-way side mounted multi-port valve lets you select any of the operations with a simple lever action, the functions of the multi-port valve are filtration, waste, closed, backwash, rinse and recirculating.

Please note you must always switch your pool pump off before changing the position of the multi-port valve.

Replacing an existing filter

If you are replacing a filter that forms part of an existing system then your replacement should match the size of the existing filter.

For example if you already have a 21 inch filter and 1.0HP pump on a 20m³ pool then you would still need 21 inch filter, alternatively you would need to replace both the pump and filter with a smaller selection as per our filter size guide.

Mega MFS Side Mount Pool Sand Filter

We Are Rated Excellent on TrustPilot

Mega MFS Side Mount Pool Sand Filter

Pool Filter Sand 25Kg Bag - Grade 16/30
Pool Filter Sand 25Kg Bag - Grade 16/30

37 in stock Delivery from next working day

-
+
£24 £20 + vat
Pool Filter Glass Media 20Kg Bag - Grade 1
Pool Filter Glass Media 20Kg Bag - Grade 1

60 in stock Delivery from next working day

-
+
£30 £25 + vat

Payment methods

Payment methods we accept

This product is available to trade customers.

For more information on the full Poolstar pool, spa and wellness range or to speak to us about becoming a stockist please call 01284 658770 or email our sales team.

We are proud to be the official UK & Ireland Poolstar distribution partner.

Download the Poolstar 2025-2026 Catalogue - pdf (73Mb)

Sales and technical help

Our sales team is more than happy to advise with product selection, trade enquiries and provide technical advice.

While our servicing team is on hand to help with servicing and after sales.

01284 658770

Mon to Fri 9am to 5pm /out-of-hours voicemail

Product code: 14895 Categories: , Tag:

Product description

Experience superior filtration and crystal-clear water with the Mega MFS side mount pool sand filter. Constructed from premium-grade, high-density polyethylene and featuring innovative, one-piece blown construction with ABS laterals, this filter delivers heavy-duty performance and reliability for most domestic swimming pools and spas.

The Mega MFS has a six-way side valve with a unique one-piece twist lock that has been designed to allow easy tool-free servicing and maintenance. The maximum working temperature is 50°C and the maximum working pressure is 2.8 bar, the filter comes complete with an easy-to-read pressure gauge.

Discontinued model, last few remaining – please note box may not be pristine

Key features

Compact and heavy duty

Valve lock is designed to allow 360 degree rotation to simplify installation

Operating pressure 2.5 bar, maximum temperature 50°C

Easy-to-use bayonet-locked multi-port valve lets you select valve/filter operations with ease

50mm / 1½ inch (63mm / 2 inch for MFS27 and MFS31) stepped glue socket union adaptors for connection to your pool pipework (please note that for pipe measurement, Imperial = Internal Bore and Metric = Outside Diameter).

Downloads

Specifications

Flowrate Max.
7.5 m³/h
Size
17 inch
Sand Required
40 Kg
Bags of sand
2
Estimated Pool Size
37.5m³
Connections
1½ inch / 50mm
Flowrate Max.
10.5 m³/h
Size
20 inch
Sand Required
70 Kg
Bags of sand
3
Estimated Pool Size
52.5m³
Connections
1½ inch / 50mm
Flowrate Max.
14.3 m³/h
Size
24 inch
Sand Required
125 Kg
Bags of sand
5
Estimated Pool Size
71.5m³
Connections
1½ inch / 50mm
Flowrate Max.
20.3 m³/h
Size
27 inch
Sand Required
185 Kg
Bags of sand
8
Estimated Pool Size
101.5m³
Connections
2 inch / 63mm
Flowrate Max.
24.7 m³/h
Size
31 inch
Sand Required
320 Kg
Bags of sand
13
Estimated Pool Size
123.5m³
Connections
2 inch / 63mm
Flowrate Max.
30.9 m³/h
Size
35 inch
Sand Required
430 Kg
Bags of sand
18
Estimated Pool Size
154.5m³
Connections
2 inch / 63mm

Filter size guide

<20m³
14 inch / 350mm
20-30m³
16 inch / 400mm
30-40m³
18 inch / 450mm
40-60m³
21 inch / 500mm
60-80m³
25 inch / 650mm
80-100m³
28 inch / 700mm

Filter media

We also stock Filter sand for our filter sets, the recommended size of sand is 0.4 to 0.8 mm, sand is supplied in 25Kg bags.

Please note the sand required is a specific grade, please do not use builders’ sand or play sand as this may block or damage your filter.

Operation

The easy to use six-way side mounted multi-port valve lets you select any of the operations with a simple lever action, the functions of the multi-port valve are filtration, waste, closed, backwash, rinse and recirculating.

Please note you must always switch your pool pump off before changing the position of the multi-port valve.

Replacing an existing filter

If you are replacing a filter that forms part of an existing system then your replacement should match the size of the existing filter.

For example if you already have a 21 inch filter and 1.0HP pump on a 20m³ pool then you would still need 21 inch filter, alternatively you would need to replace both the pump and filter with a smaller selection as per our filter size guide.

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