Lacron Side Mount Swimming Pool Filter – 18″ Dia

Lacrons LSR side mount filter range is ideal for permanent in ground residential swimming pools.

£589.00 inc VAT (£490.83 exc VAT)

In stock

Product reference: 14955 Category:


LSR-SUREFLOW Side Mount Filter – 18″ Dia
The Sureflow is the largest selling and most popular residential swimming pool sand filter sold and installed in Britain for more than 25 years. Over a quarter of a million have been commissioned. The LSR swimming pool sand filters range is ideally suited to permanent in-ground residential indoor or outdoor pools.
The main tank structure is made from extremely hard wearing (injection moulded) glass reinforced polyester. A smooth high gloss internal and external finish ensures a free flow and easy cleaning. The side mounted multi-port valve configuration together with the large clear lid access (230mm diameter) allows servicing of interior without the need to disturb the connecting pipe-work. The clear lid provides an excellent visual display of the water passing through, particularly useful when back-washing the filter. Combined with the low head loss underdrain systems and connection pipe-work an LSR swimming pool sand filter is one of the most efficient and cost effective on the market.
Lacron sand filters for swimming pool come complete with multiport & pressure gauge.
These sand filters are capable of being filled solely with filter sand for domestic filters, the use of Pea Gravel is normally for commercial installations.
The use of Pea gravel is primarily to allow a more even flow around the bottom of the filter, and reduce bacterial growth in the dead spot of the filter & increase the effectiveness of the backwash process, but due to the medium flow rate sand filters used for domestic pool, this is not necessary in smaller filter diameters. If however these filters are to be used in a commercial environment or in 24″ diameter & larger filters, then pea gravel is recommended, due to the size of the dead zone below the laterals.
Should you wish to order the pea gravel for your filter, please look at the media table below to order the required amount of sand & gravel for your size of filter.
Always fill your filter 1/3 full of water before filling with any filter media, as this will help to lessen the impact of the media hitting the fragile laterals in the bottom of the filter. If you are using Pea Gravel, you must ensure that the gravel forms a level layer at the bottom of the filter first, and only just covers the laterals, if you over fill with Pea Gravel you will reduce the efficiency of your filter by reducing the depth & area of filtration available.
Flow Rate GuideLSR-16 filter with 1 1/2″ Multiport Valve – Designed to give a flow rate of 6.5M³/hour.
LSR-18 filter with 1 1/2″ Multiport Valve – Designed to give a flow rate of 8.5M³/hour.
LSR-24 filter with 1 1/2″ Multiport Valve – Designed to give a flow rate of 14.5M³/hour.
LSR-30 filter with 2″ Multiport Valve – Designed to give a flow rate of 22.5 M³/hour.
LSR-36 filter with 2″ Multiport Valve – (Special Order) Designed to give a flow rate of 26 M³/hour.
LSR-36 filter with 3″ Multiport Valve – (Special Order) Designed to give a flow rate of 31 M³/hour.
LSR-42 filter with 3″ Multiport Valve – (Special Order) Designed to give a flow rate of 43 M³/hour.
Media Charge Guide16″ filter requires 50kg’s of filter sand- No gravel required
18″ filter requires 75kg’s of filter sand – No gravel required
24″ filter requires 125kg’s of filter sand – (Commercial 100kg of sand for 25kg of pea gravel)
30″ filter requires 200kg’s of filter sand – (Commercial 150kg of sand for 50kg of pea gravel)
36″ filter requires 400kg’s of filter sand – (Commercial 325kg of sand for 75kg of pea gravel)
42″ filter requires 550kg’s of filter sand – (Commercial 450kg of sand for 100kg of pea Gravel)

Awaiting documentation.

Warranty & Returns

This Product has a 5 year warranty.

Should you require any further information, please email where we will respond to your request quickly.

Stock & Delivery

This product is in stock at our warehouse and is ready for Express or Economy Delivery Service.

Delivery – Mainland UK
Orders placed before 2pm Monday to Friday we aim to dispatch on the same day, after 2pm will be the following working day. This does not include Bank Holidays, which are classed as non-working days. Should you require a Saturday delivery or have any other delivery enquiries, please email who will respond to your request quickly.

Try to include your mobile phone number in the checkout area so that our delivery drivers can contact you should they need any further assistance or clarification in delivering your order.

Please ensure you leave detailed information if your delivery address is hard to find or a new housing development. If you know there is a possibility of missing the delivery, you can at the checkout stage leave instructions for the delivery driver to leave without signature and place your goods with a neighbour or in a discreet place out of sight for your later retrieval.

Please note some areas including Scotland(post codes AB, FK, IV, KW, PA, PH, HS, KA, ZE, TR, DD, PH, PA, KY, AB, DD, KW, IV, HS), Isle of Wight, Isle of Man, will need extra carriage. We no longer ship to Jersey, Guernsey or Northern Ireland.


If you are unable to thoroughly check your delivery upon receipt, sign for it as UNCHECKED. If the package is damaged in any way, no matter how small, please sign for it as DAMAGED. We CANNOT CLAIM from our carriers for any damaged items that have not been signed for as UNCHECKED or DAMAGED.

If you sign for a delivery as OK, which you later find to be damaged, our carriers WILL NOT accept liability and you may be charged for the damaged items, in this case a delivery charge for replacement items WILL be made.

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