The Pentair Triton swimming pool sand filter is the original and still the industry standard. The patented GlasLok process creates a one-piece, fiberglass reinforced tank with UV resistant surface finish for years of unequalled strength and durability. FEATURES19" & 24" Diameter filters come complete with 1 1/2" side mount multi-port valve & pressure gauge. 30" & 36" Diameter filters come complete with 2" side mount multi-port valve & pressure gauge. 8.5" Transparent domed lid with manual air-relief & lid spanner Maximum operating pressure 2.8 bar. Maximum operating temperature 50°C Max. 10-year Tank Warranty. Swing away water diffuser allows instant access to sand and all internal parts. Flow Rate Guide F-19S8-TRV filter with 1 1/2" Multiport Valve - Designed to give a flow rate of 8.5M³/hour. F-24S8-TRV filter with 1 1/2" Multiport Valve - Designed to give a flow rate of 14 M³/hour. F-30S8-TRV filter with 2" Multiport Valve - Designed to give a flow rate of 22 M³/hour. F-36S8-TRV filter with 2" Multiport Valve - Designed to give a flow rate of 32 M³/hour. Media Charge GuideF-19S8-TRV filter needs 72kg's of filter sand - or 52kg of sand & 20kg of pea gravel - So 2 x 25kg of sand & 1 x 25kg of gravel will be included in the media fill option or 3 x 25kg of sand if no gravel is required (domestic pools). F-24S8-TRV filter need 148kg's sand - or 108kg of sand for 40kg of pea gravel - So 4 x 25kg of sand & 2 x 25kg of gravel will be included in the media fill option or 6 x 25kg of sand if no gravel is required (domestic pools). F-30S8-TRV filter needs 200kg of sand and 80kg of pea gravel - So 8 x 25kg of sand & 3 x 25kg of gravel will be included in the media fill option. F-36S8-TRV filter needs 310kg of sand and 120kg of pea gravel - So 12 x 25kg of sand & 5 x 25kg of gravel will be included in the media fill option. For Convenience we have rounded the media fills to equal bag quantities when ordering the filters with Media Fills, but should you wish to follow the exact quantities, please select the individual items from the sand & gravel sections. Tank Filling InstructionsAlways 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. Reviews. Find out what genuine customers have said about ukpoolstore.co.uk. Real product reviews from real people.">