Submersible pump. 396 Gallons per hour, 25 W motor, 1.5M=4.9 ft power cord
Possible homebrew uses: Recirculating draft line cleaner build or as part of a recirculating wort chiller setup.
I use a similar style pump (although different model, manufacturer and specs) in my Recirculating Draft Line Cleaning Build.
3/15/19 8 AM Central: This is selling for $13.97. the best historical third party Amazon price I found, notwithstanding Lighting Deals or coupons. Shipping is also free to many US addresses with Prime Membership [Try Prime for Free] or a qualifying order. Prices, shipping and availability can change quickly. Please note that product prices and availability are subject to change. Prices and availability were accurate at the time this post was published; however, they may differ from those you see when you visit Amazon. Check the product page for current price, description and availability. Also: Recent Amazon Finds and Amazon Fillers Resource Page
SongJoy Submersible 1320 GPH Water Pump for Aquarium Fish Tank Fountain Indoor Outdoor Water Garden Pond (400GPH) – note that additional versions may be available, as such a different product may show up at this link
More: Recent Amazon Finds
Make sure the components you use are compatible and rated for your intended application. Contact manufacturer with questions about suitability or a specific application. Always read and follow manufacturer directions.