Best pond filter in the UK in 2022
What is the best pond filter? A pond filter helps you keep the pond water oxygenated, clear, and favourable for the fish and beneficial bacteria to thrive. When choosing your pond filter, we suggest that you opt for more advanced models that have UV light filtration and other useful features.
More importantly, you need to pick the right size of the filter for your pond. The size is determined by a flow rate, which is measured in gallons per hour (gph). It is recommended that a filter has a flow rate of 1.5 times the number of gallons in the pond.
By way of illustration, if you have a 100-gallon pond, get a filter with a flow rate of 150 gph. If you have trouble making up your mind about which size is more suitable for your pond, opt for the larger one. A higher flow rate will only be beneficial to your pond, whereas insufficient filtration can only lead to stagnant water conditions.
Let’s look at the example of the Blagdon Inpond 5-in-1 Pond Pump and Filter that is designed for ponds of up to 9,000 litres. The product is available in four sizes, all of which come with both mechanical and biological filters, polymer wool cartridges, and 1-watt LED spotlights for nighttime illumination.
What differentiates them is the flow rate, the number of fountain options, UV clarifier’s wattage, and LED spotlight’s specifications. The most basic option, Blagdon Inpond 5-in-1 2000, has a max flow rate of 650 litres per hour, a max pumping height of 1.25 meters, and a 5-watt UV clarifier. Unlike the other three models that have an automatic LED spotlight, this one features a regular one.
The Blagdon Inpond 5-in-1 3000 pond filter offers a flow rate of 700 litres per hour. As for the other specifications, it does not differ much from the basic models. Both have a 10-watt pump with a 1.25-meter pumping height and 3 fountain features.
If you are looking for a more advanced and powerful option, the Blagdon Inpond 5-in-1 6000 or Blagdon 1054348 Inpond 6-in-1 9000 will be the best bet for you. Both models have a significantly greater flow rate, 1,500 and 3,000 litres per hour, respectively.
They also have more fountain features and a more powerful pump. The Blagdon Inpond 5-in-1 6000 includes a 26.5-watt pump with a pumping height of 1.3 meters while the Blagdon 1054348 Inpond 6-in-1 9000 offers a 49.5-watt pump with 2 meters of pumping height.
Best-Selling Pond Filters in the UK | Comparison Table
Most Popular
Blagdon Inpond 5-in-1 3000, 10w Pond Pump and by Amazon.co.uk
- A complete in-pond solution including pump, filter, 3 fountain options, green water UV clarifier, and automatic LED spotlight
- Includes automatic nighttime LED spotlight with pivoting feature to bring your pond to life after dark (replace bulb annually)
- The 5w UV clarifier kills algae and makes green water clear. It is very important to replace the UVC lamp annually in Spring to keep your filter in top working order
Products with a 5-star rating
Other Popular
Blagdon 9W Mini-Pond 6-Stage Box Filter 12000 Litre Model with UV Clarifier Light, for Ponds Up-to 12,000 Litres
- Create a clean and healthy environment for your fish with a minimal amount of maintenance due to the unique 6 stage filter design
- UV light kills green water algae, Spray Bar oxygenates water, Graded Foam traps waste, Pro-Bio Media creates healthy water, Polymer Wool polishes water, Carbon Foam removes chemical pollutants
- This is a gravity filter; it must be situated higher than the pond surface. Ensure that the outlet hose is under 1m in length and that there is a drop of 15cm over this distance to the pond surface
- Easy to clean, easy access hinged lid, 5-meter cable, no mains plug, no hose included
- Multichoice hose fitting: 1.27 cm, 1.905 cm, 2.54 cm (hose not included)
- High-Performance UVC clears green water algae
All Pond Solutions Pressurised Koi Fish Pond Filter and UV Steriliser
- Biological and mechanical filter for efficient removal of dissolved and solid waste
- Includes pond filter, pond pump, 5m heavy-duty flexible hose, and 2x jubilee clips
- 4 Foams supplied 2 x fine / 2 x course
- For ponds up to a maximum of 5000 Litres, the Pressurized filter allows exiting water to run uphill - max. 3m
- The quick, simple, and easy spin clear cleaning mechanism
Blagdon Inpond 5-in-1 2000, 10w Pond Pump and Filter with UV Clarifier, LED Light, 3 Fountain Heads, for Ponds Up...
- A complete in-pond solution including pump, filter, 3 fountain options, green water UV clarifier and automatic LED spotlight
- Includes night-time LED spotlight with pivoting feature to bring your pond to life after dark (replace bulb annually)
- The 5w UV clarifier kills algae and makes green water clear. It is very important to replace the UVC lamp annually in Spring to keep your filter in top working order
- For optimum performance remove as much debris and sludge from your pond as possible before installing this product
- Fountainheads included; Single Daisy, Super Daisy, Water Bell. IP68 rated, 10m Cable, no mains plug
All Pond Solutions Koi/Goldfish Pond Filter Box, Small, 6000 Litre
- Max Flow rate: 3000L/h
- Decorative Ponds: up to 6000 Litres, Ponds with a small mix of fish: up to 4500 Litres & Ponds with a small mix of koi: up to 3000 Litres
- Dimensions: 400 x 275 x 400mm (L x W x H)
- Inlet hosetail fits: 20, 25, 32 & 38mm hose
- Water outlet 1 size 45/50mm (internal / external), Waste outlet 2 size 38/48mm (internal / external - threaded)
All Pond Solutions Pressurised Koi Fish Pond Filter and UV Steriliser for PFC, 12000 Litre
- Biological and mechanical filtration for efficient removal of waste
- 5 foams supplied 2 x fine/3 x coarse and bio-balls
- Built-in 11W UV steriliser and clarifier; Complete with Inlet and Outlet Hose Adapters
- For ponds up to a maximum of 12000 Litres
- Quick, simple and easy spin clear cleaning mechanism
Blagdon Midipond UV Pond Filter System 28,000 for extra Large Ponds
- Compact and powerful seven stage filtration process: UV light kills green water algae, Venturi oxygenates and circulates water, Steel Screen sieves large waste
- Graded Foam traps waste, Pro Bio Media creates healthy water, Polymer Wool polishes water, Carbon Foam removes chemical pollutants
- Crystal water guarantee
- Easy to clean, easy access hinged lid
- 3 years guarantee
- Will Clear a pond with the maximum volume of 7,875 Litres
- Product arrives fully assembled
Pressurised Pond Filter and UV Steriliser Light - Optional Pump and Hose Kits (PF-8000)
- PF-8000 for ponds up to 8000L
- Biological and mechanical filter chambers for more efficient removal of dissolved and solid waste
- Coarse and fine filtration foams supplied
- Enables rapid growth of aerobic bacteria resulting in removal of lethal ammonia and nitrite
- Complete with inlet and outlet hose adapters
Swell UK Pressure Filter Premium 15,000 with Biological and Mechanical Media | UV Clarifier for Crystal Clear...
- [EXCELLENT FILTRATION] - The Premium Pressurised Pond Filters host a mixture of both biological and mechanical media to maintain crystal clear healthy water for you fish/koi. The UV clarifier will fight to eradicate microorganisms and some parasites which can cause fish diseases, it will also help to prevent the growth of algae. Team with the Swell filter pump which filters out particles between 4-8mm stopping them from every reaching the filter making the system far less hassle to maintain.
- [HIGH PERFORMANCE] – Does not rely on gravity so can feed waterfalls set at higher levels or can be buried out of sight if preferred. Designed to be run all year using very low wattages to save you money without compromising the performance, making them great for producing sparkling clear water in small goldfish ponds or even larger koi ponds.
- [SIMPLE MAINTAINANCE] – The Swell Pressure Filter Premium has a rotating cleaning handle on the head, making it easy to clean for maximum effect. This model has a unique feature that tells you when the filter needs to be cleaned by using a small float, which pops-out of the head of the unit when required Once rinsed with the turning handle, the outlet can be opened to discharge dirty water containing debris until it runs clean and basic maintenance is complete.
- [EASY INSTALLATION] - Connecting your system is very simple, but we include an instruction manual in the box which gives you a step-by-step guide. The filters come with a 4 metre plug less cable so the clarifier can be wired directly into a switchbox.
- 1 YEAR GUARANTEE
Pressurised Koi Fish Pond Filter/UV Light Steriliser all in one (PFC-3000)
- Biological and mechanical filtration for efficient removal of waste
- 3 fine filter foams supplied to collect all the dirt and grim that travels through your filter
- Built in 9W UV steriliser and clarifier; Pressurized filter allows exiting water to run up-hill - max. 3m
- Can be used for a variety of pond sizes - for ponds up to a maximum of 3000 Litres
- Quick, simple and easy spin clear cleaning mechanism reducing the need to dis-assemble
