Great little 12VDC oil-less diaphragm style air pump. For you techies out there it draws 40-300mA, 2.0 Litres/min, 350mm Hg max pressure. These are takeouts but in great condition. Outlet port is 5/32". Overall size 2-3/4" x 1-1/16".

From ET Tech, this series 23 liquid micro-pump draws less than 300mA at 4-6VDC (5VDC nominal) with a liter-per-minute flow rate and up to a 3-foot lift. Not submersible, but suitable for hot-water apps and continuous duty. Measures 1" x 1" dia with a barbed 1/4" right-angle outlet and a 3/8" OD inlet on top. Great for fountains!

Here are the ins and outs of submersible pumps for your DIY fountain.These small electric pumps run on 24 VAC (For low energy consumption.) from the included wall outlet adapter, are rated for continuous duty, have (3) suction-cup feet, an adjustable flow control and both a straight and 90° 5/16" tubing adapter. This little pump is roughly 2-5/8" x 1.5" x 2-1/4", has a 6-ft power cord with an in-line switch, and pumps 70 gal/hr @ 1 ft lift. Plug it in and go with the flow. Indoor use only.

Nifty device that takes maxi air and squeezes it down into a mini condition. The device is roughly 6-1/2"" long x 6" tall x 4" wide. It has a 10 ft. cord that plugs into an auto lighter socket: i.e. it runs on 12VDC @ 10 amps. Air output is via a 12" hose with a variety of valve adapters for tires, soccer balls, rubber rafts, and just dusting off the environment. Complete with a 0-250 psi gauge. Which should be plenty of pressure to explode a weak bike tire or flimsy beach ball, so please be careful!

This nifty little compact air compressor will blow up tires, air mattresses, toys and other inflatables while taking up less room in your car than a tall iced skinny cinnamon dolce latte. Measures 4.5" x 6.5" x 3", including the little head-like 0-250 psi gauge on top. On a 10-foot cord that plugs into an auto cigarette lighter/auxiliary outlet, and comes with (1) needle and (2) nozzle attachments. Also fits standard tire valves.

You’ve always wanted a tranquil water fountain on the grounds of your manor? Or at least on the table in your kitchen? This set will let you turn nearly any container into a soothing fountain. The 4” tall x 4” dia gray plastic pump cover has 3/4” notches in the bottom for a hose and water movement, and the removable top has a 3/8” ID center hole attached to a 2-1/2” long piece of 1/2” dia tube inside. It’s all made to conceal the included circulating pump, which moves 70 gal/hr @ 1 ft lift, and measures 2-5/8” x 1-1/2” x 2-1/4”. Runs on 24VAC, and has a 6-ft power cord with an in-line switch. Luxuriate in the soothing gurgle of water.

These windshield-washer pumps are replacement parts for 2013-16 Dodge Darts, but will be happy to squirt on anything you like. They draw approx 150mA at 12VDC with a 7/8" long x 1/4" OD inlet tube with what looks like a small impeller, and a 1/4" OD outlet barb at a right angle. Housing is 2-1/2" long x 1-3/8" dia with shielded electric connectors at the back. Terminal one is hot; two is common. Made in Switzerland, by gosh.

This 12VDC air diaphragm single head pump from Parker draws approx 70-110mA and can push 25psi or suck 20”/Hg (2.5 l/min) via its 3/16” barbs. Has 5” leads (red and black for power, others for controls), and measures 4” x 2” x 1-1/4”. Parker part # C183-22-01

Pumps air, too. From Parker, this unused takeout 12VDC double air/gas diaphragm pump draws 100-200mA and can push 28psi or suck 25"/Hg through two sets of 3/16” dia barbs. Long-life and ideal for high-flow and low-noise applications. Measures 3-5/8" x 3" x 1-1/4". Made in USA. Part#D861-22-OZ

This vacuum pump from Koge Electronics draws 100-250mA at 4.8V and is rated for >2.6L/minimum output and -460mbar of pressure. Measures 2-9/16" x 1-3/16" x 1-5/16" with a 3/16" OD x 3/8" inlet barb and a 3/16" OD x 1/2" tall outlet barb, plus (4) 1/8” ID mounting wings. Power terminals are exposed and you may get short leads. Koge model #KPV276.