allpondsolutions Small Fish Pond Filter Box Koi/Goldfish Garden Ponds up to 6000L

Ideal for small ponds up to 6000L - If your pond is in a sunny position we recommend the BF-6000+ model. Designed to provide mechanic and biological filtration to ensure your pond is always clear and healthy. Includes Japanese matting, coarse / fine foam, bio balls filter media. Thermometer / dirty filter indicator built into lid. 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 Dimensions: 400 x 275 x 400mm (H x W x L) - Easy to clean - No Electrical parts.