# Auto-Backwash Sediment Filter 21 × 62 > A heavy-duty, fully assembled auto-backwash sediment filter on a 21 × 62 inch pressure vessel and CE 1.25 inch valve, built for Clack Filter-Ag Plus clinoptilolite that reduces suspended solids to the 5 micron range. - Page: https://sovereignwater.co.uk/products/auto-backwash-sediment-2162 - Category: Commercial filtration - Brand: Sovereign - Market: the UK (Sovereign Water UK) - Last updated: 2026-11-06 - Supply: quote-led. Prices are not published online. Request a quote: https://sovereignwater.co.uk/contact ## At a glance - What it is: A fully assembled auto-backwash sediment filter - Vessel: 21″ × 62″ - Valve: CE 1.25″ - Media: Clack Filter-Ag Plus clinoptilolite - Suspended solids: Reduced to about 5 µm - Scalable: 2 to 6 units - Power: 230 V, 30 W - Model code: BF2162CE125 ## Overview This is a heavy-duty, fully assembled filtration unit built around a 21 × 62 inch pressure vessel with a CE 1.25 inch control valve. It is automated, flexibly configurable, and suited to residential estates, commercial facilities and industrial pre-treatment. The sediment version is designed for Clack Filter-Ag Plus, a clinoptilolite media whose deep-bed filtration reduces suspended solids down to about the 5 micron range. ## Key features - 21 × 62 inch pressure vessel with CE 1.25 inch control valve - Filter-Ag Plus clinoptilolite media, NSF/ANSI 61 certified - Suspended solids reduced to about 5 µm - Longer filter runs and lower backwash frequency - Standalone, twin, duplex or 2 to 6 units - 230 V, 30 W ## Specifications | Item | Value | | --- | --- | | Model code | BF2162CE125 | | Pressure vessel | 21″ × 62″ | | Control valve | CE 1.25″ | | Type | Auto-backwash filter, fully assembled | | Regeneration | Time or volume, delayed, immediate or both | | Configuration | Standalone, twin or duplex · 2 to 6 units on a Clack controller | | Power | 230 V · 50/60 Hz · 30 W | | Media | Filter-Ag Plus (clinoptilolite) | | Suspended solids | To about 5 µm | | Effective size · mesh | 0.55 mm · 14 × 30 | | Service flow rate | 12 to 20 gpm/ft² | | Maximum water temperature | 60 °C | | Certification | NSF/ANSI 61 | ## Who this unit is for - Residential estates that want finer sediment removal. - Commercial facilities that want suspended solids out ahead of other equipment. - Industrial pre-treatment, ahead of other plant. - Sites that may later grow: units scale from 1 to 6 on a Clack controller. ## Where it is used - Residential estates - Commercial facilities - Industrial pre-treatment ## How it works The datasheet shows five steps: feed water in, the 21 × 62 inch media bed, deep-bed filtration, automatic backwash regeneration, and filtered water out. Filter-Ag Plus is a natural clinoptilolite with a large surface area and a microporous structure. The datasheet says its deep-bed filtration gives superior water quality, longer filter runs and lower backwash frequency, typically reducing suspended solids to the 5 micron range. The control valve regenerates by time or by volume, delayed, immediate or both. The datasheet does not give a flow rate or operating pressure for this unit, so we confirm the flow and the number of units at survey. ## How it compares The three smaller auto-backwash units share a design. The difference is the vessel size and the media inside. - [Auto-Backwash Carbon Filter 10 × 54](https://sovereignwater.co.uk/products/auto-backwash-carbon-1054): You need **chlorine, THM and organics removed** with AquaSorb CS coconut-shell carbon, on a 10 × 54 inch vessel and CE 1 inch valve. - [Auto-Backwash Sediment Filter 10 × 54](https://sovereignwater.co.uk/products/auto-backwash-sediment-1054): You need **suspended solids reduced to the 20 to 40 micron range** with Filter-Ag, on a 10 × 54 inch vessel and CE 1 inch valve. - Auto-Backwash Sediment Filter 21 × 62: You need **finer sediment removal, to about 5 micron** with Filter-Ag Plus, on a larger 21 × 62 inch vessel and CE 1.25 inch valve. - [Regent Sediment 3072](https://sovereignwater.co.uk/products/regent-sediment-3072): You need **a published flow figure** and a larger unit: **11.8 m³/h** on a 30 × 72 inch vessel with a metered CE 1.5 inch valve. ## Installation and servicing The unit is a complete assembly, ready for media loading: the control valve, meter assembly, DLFC, distributor sets, drain fitting, funnel and power supply. The media is specified on order. An optional Clack system controller runs twin, duplex or 2 to 6 unit set-ups. The unit runs on 230 V, 50/60 Hz at 30 W. The media is rated to a maximum water temperature of 60 °C and a service flow rate of 12 to 20 gpm/ft². We check the rest against your site at survey. The survey is chargeable and is credited back if you go ahead. ## Questions and answers ### What does this unit remove? Suspended solids. Filter-Ag Plus typically reduces them to about the 5 micron range. ### How much water can it treat? The datasheet does not give a flow rate for this unit, only a media service flow rate of 12 to 20 gpm/ft². We confirm the flow, and how many units you need, at survey. ### What size is the vessel and valve? A 21 × 62 inch pressure vessel with a CE 1.25 inch control valve. ### What is Filter-Ag Plus? A clinoptilolite natural media with an effective size of 0.55 mm and a 14 × 30 mesh size. It is NSF/ANSI 61 certified, with a maximum water temperature of 60 °C. ### How does it clean itself? It backwashes automatically, by time or by volume, delayed, immediate or both, programmed to demand. ### Can I run more than one? Yes. Standalone, twin, duplex or 2 to 6 units, with an optional Clack system controller. ### Is the media included? No. The datasheet lists the media as specified on order, and the unit is supplied ready for media loading. ### What is the difference from the 10 × 54 unit? The 10 × 54 inch unit is smaller, uses a CE 1 inch valve, and is built for Filter-Ag, which reduces solids to about 20 to 40 micron. ### What warranty does it have? The datasheet does not state a warranty period. We confirm the warranty terms at survey. ### Do you supply, install and maintain it? Yes. We supply and install it, and offer a Comprehensive Maintenance plan with consumables. The survey is chargeable and is credited back if you go ahead. ## Related products - [Auto-Backwash Filters](https://sovereignwater.co.uk/products/auto-backwash-filters): The range overview. - [Auto-Backwash Sediment Filter 10 × 54](https://sovereignwater.co.uk/products/auto-backwash-sediment-1054): Smaller vessel, solids to about 20 to 40 micron. - [Regent Sediment 3072](https://sovereignwater.co.uk/products/regent-sediment-3072): A larger sediment filter, 11.8 m³/h. ## Downloads - [Auto-backwash sediment 21×62 datasheet (PDF)](https://sovereignwater.co.uk/datasheets/backwash-sediment-2162.pdf) ## Contact - Request a quote or a site survey: https://sovereignwater.co.uk/contact - Email: sales@sovereignwater.co.uk - Phone: +44 20 8050 2115