sera KOI Professional 12000 Pond Filter

The sera Koi Professional 12000 Pond Filter provides modern and function and design leading the way: Being space saving and effective, it cleans ponds up to 20,000 liters (5,284 US gal.), Koi ponds up to 12,000 liters (3,170 US gal.). It is not only constructed according to newest findings in flow technology, but also shines in an attractive outside appearance.

The water flows through 4 purification steps: The water is first treated with pathogen and algae reducing UV-C radiation in the physical one. It flows via a detention chamber into the mechanical purification step consisting of a bowed stainless steel split sieve with 200 µm mesh width. Not only coarse particles are collected here, but also the algae cells previously treated and clogged by the UV-C radiation. In case of an algae bloom threat (“green water”), a fine mesh filter sponge, which removes even single celled algae from the pond water to be filtered, can be integrated underneath the split sieve with a flick of the wrist. In case the sponge is not cleaned in time, the water runs directly into the biological step via a safety overflow. The water is first distributed by a Matala mat here, then it is enriched with oxygen and trickles over the high performance filter medium sera siporax pond settled by the filter bacteria. The purified water gets back into the pond via a detention step.


Basic version (item no. 08309)

  • 1 pc. filter body
  • 1 pc. UV-C System 55 W
  • 10 l / 2 kg (4.4 lb.) sera siporax pond
  • 1 pc. Matala mat
  • 2 pcs. fine mesh filter sponges

Equipment version with pump (item no. 08310)

  • like basic version
  • 1 pc. sera pond pump PP 12000 (powerfull and energy saving feed pump in a beautifully shaped basket)
  • 10 m (11 yd.) sera pond hose (Ø 32 mm / 1 ¼")

Available in anthracite or granite.

Technical data

UV-C Systems 55 W Voltage
Power uptake
Suitable connectors Ø
230 V ∼ 50 Hz
55 W
32 / 40 mm (1¼" / 1½")
PP 12000 pond pump Voltage
Power uptake
Delivery amount
Delivery height Hmax
230 V ∼ 50 Hz
165 W
12,000 l/h (3,170 gph)
5.1 m (16.7 ft.)
Comment Quantity Item no.
sera KOI Professional 12000 Pond Filter incl. UV-C 55 Watt 1 pc(s) 08309
sera KOI Professional 12000 Pond Filter incl. UV-C 55 Watt & 1 x PP 12000 1 pc(s) 08310

Spare parts

Spare Parts

Quantity Item no.
sera pond fine mesh filter sponge
250 × 170 × 50 mm (9.8 × 6.7 × 2 in.)
1 pc(s) 08304
sera Matala mat
31 x 23 x 4 cm (12.2 x 9.1 x 1.6 in.)
1 pc(s) 08640
sera rubber seal for sieve 1 pc(s) 08641
sera removal aid for sieve 1 pc(s) 08642
sera stainless steal sieve 1 pc(s) 08644
sera ball value
for waste water chamber, with 1" screw joint
1 pc(s) 08646

sera guide booklets

Browse our extensive guide booklets. From the first steps via correct feeding up to health related topics ...

sera guide booklets