I am selling an external ultra-violet canister filter made by beckett that includes its medium waterfall pump for ponds up to 1200 gallons. This was only used for an indoor display pond that didn't have any fish for three months. Everything works. Retail on the filter is $169 and on the pump $69. I'll sell it for $100 (OBO) or trade it for a 30 inch power compact light (or t5 light). Any other trade will be considered. You can view this products at the homedepot website under pond filters.