Code
 Filter size L x W x D
Filter Volume
Pond Vol.
Price
Order
BF 00
3'L x 16"W x 23"H 3 bay
3cu.ft /85l
800g
£
BF 01
4' x 16" x 23"  4 bay
4cu.ft /112l
1000 g
£
BF 02
5' x 24" x 24"  4 bay
9.6cu.ft /270l
2500 g
£
BF 03
6' x 24" x 24"  4 bay
11.6cu.ft /325l
3000 g
£
BF 04
8' x 24" x 24"  4 bay
16cu.ft /450l
4000 g
£
BF 05
10' x 24" x 24"  5 bay
20cu.ft /560l
5000 g
£
BF 06
5' x 30" x 30"  4 bay
18cu.ft /500l
4000 g
£
BF 07
6' x 30" x 30"  4 bay
20cu.ft /558l
5000 g
£
BF 08
8' x 30" x 30"  4 bay
28cu.ft/785l
6500 g
£
BF 09
10' x 30" x 30"  5 bay
36cu.ft/1010l
8000 g
£
BF 10
5' x 36" x 30"  4 bay
21cu.ft/588l
5000 g
£
BF 11
6' x 36" x 30"  4 bay
25cu.ft/700l
6000 g
£
BF 12
8' x 36" x 30"  4 bay
35cu.ft/980l
8000 g
£
BF 13
10' x 36" x 30"  5 bay
43cu.ft/1205l
10000 g
£
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Kompact Biological Filter
Trickle filter
Fluid bed filtration
Multibay Biological Filters are designed for the biological removal of ammonia , nitrite and the settlement  of solids from pond water. The filters can be pump or gravity fed. Tank connectors are supplied loose, so they can be fitted into the filter in any position as required. All connectors are supplied with either a backnut or stainless steel screws and we recommend using a silicone or PU mastic to seal. Water passes through each bay by upflow / downflow,
this ensures maximum contact with the filter media promoting high efficiency through the filtering process. The smooth laminar flow generated by the filter design encourages solids to settle into the bottom of the filter where it collects.
Settled waste solids are removed through 1½" drain outlets fitted  at the base of the filter. Valves & pipework can then be fitted directly to these to for drain to waste. Media support trays are supplied for each bay except the first. Valves are supplied for the fixed drain positions.
.
The filters are reversible for flow direction
Filters can also be supplied complete with biological filtration media.
The media is supplied as: Bay 1, two rows of
6" brushes. Flocor in bays 2/3  and Alfagrog in  bay 4 (5).
We can supply other media and would be pleased to quote on request.
Media capacity is calculated on all bays except the first which has brushes. All figures for volume relate to media and not the actual capacity of the filter.
The principle of biological filtration is the same, regardless of whatever equipment is supplied. That is bacteria take ammonia and turn it into nitrate. The bugs take a toxic form of nitrogen (fish poo) and turn it into plant food-simple. Take a look at the nitrogen cycle if you want to know more.
The actual mechanics of biological filtration can take many forms each has advantages and disadvantages. We have learnt that every filter installation is different. We offer simple straight-forward equipment which has been proven over many years to be efficient and easy to maintain
Multibay Biological Filters
Free Standing
Deep V profile base to aid in waste removal
High capacity ensures even flow through the filter
Installation For gravity fed filters the top of the filter, when installed,  should be a minimum of 1"
higher than the top level of the pond water.                The filter must be sited on a level concrete base.
Multibay Biological Filters    - No media
Filter without media.  Price ex. VAT
Multibay Biological Filters    - With media
LIDS FOR BIOLOGICAL MULTIBAY FILTERS:

Drop on apex type, to shed water off. Made from black polypropylene Lift off  type, hinged available.

Lids for longer filters are made in two or three sections with over lap joints. 
Multibay Filter Lids
MFL
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Henderson Plastics Filtration catalogue
Code
 Filter size L x W x D
Filter Volume
Pond Vol.
Price
Order
MF 00
3'L x 16"W x 23"H 3 bay
3cu.ft /85l
800g
£
MF 01
4' x 16" x 23"  4 bay
4cu.ft /112l
1000 g
£
MF 02
5' x 24" x 24"  4 bay
9.6cu.ft /270l
2500 g
£
MF 03
6' x 24" x 24"  4 bay
11.6cu.ft /325l
3000 g
£
MF 04
8' x 24" x 24"  4 bay
16cu.ft /450l
4000 g
£
MF 05
10' x 24" x 24"  5 bay
20cu.ft /560l
5000 g
£
MF 06
5' x 30" x 30"  4 bay
18cu.ft /500l
4000 g
£
MF 07
6' x 30" x 30"  4 bay
20cu.ft /558l
5000 g
£
MF 08
8' x 30" x 30"  4 bay
28cu.ft/785l
6500 g
£
MF 09
10' x 30" x 30"  5 bay
36cu.ft/1010l
8000 g
£
MF 10
5' x 36" x 30"  4 bay
21cu.ft/588l
5000 g
£
MF 11
6' x 36" x 30"  4 bay
25cu.ft/700l
6000 g
£
MF 12
8' x 36" x 30"  4 bay
35cu.ft/980l
8000 g
£
MF 13
10' x 36" x 30"  5 bay
43cu.ft/1205l
10000 g
£
Filter with media.  Price ex. VAT
Code
LID for filter size
   
Price
Order
BLF 00
LID for 3'L x 16"W
   
£
BLF 01
LID for 4' x 16"W
   
£
BLF 02
LID for  5' x 24"
   
£
BLF 03
LID for 6' x 24"
   
£
BLF 04
LID for  8' x 24"
   
£
BLF 05
LID for  10' x 24"
   
£
BLF 06
LID for  5' x 30"
   
£
BLF 07
 LID for 6' x 30"
   
£
BLF 08
 LID for 8' x 30"
   
£
BLF 09
LID for 10' x 30" 
   
£
BLF 10
LID for 5' x 36"
   
£
BLF 11
LID for  6' x 36"
   
£
BLF 12
 LID for  8' x 36"
   
£
BLF 13
  LID for 10' x 36"
   
£
10000 g
MFL
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