Can you let me know which item numbers would work for me?

There are two or three sprayers that can help here. The most popular one is the TROMBONE SPRAYER. It's excellent for use outside and when you need to reach trees or house siding 25 feet up or higher. View the video on the Trombone page to see just how well this unit works.

Some people opt to use a HOSE END SPRAYER. When hooked to a garden hose with significant water pressure, the 6 GALLON or 20 GALLON can reach 20 feet or higher.

Lastly, the SOLO HD fitted with a VALVE CAP can be pressurized above the normal 45 lbs to enable it to reach higher. Just be forewarned that these tanks are only tested to hold up to 100 lbs so don't over inflate them or they'll break for sure. I have used them pumped up to 60-70 lbs and they can spray 20-25 feet. This has come in a handy a few times but isn't something I'd recommend doing all the time. For a pure pinstream, this would be your best option. The Hose End options as well as the Trombone will both put out a lot more product and it won't be nearly as tight as the Solo Pump Sprayer.

Here are direct links to the information and products listed above:

Trombone Sprayer:  http://www.gotosprayer.com/sprayers/pump-sprayers/trombone-pump

6 Gallon Hose End:  http://www.gotosprayer.com/sprayers/hose-end-sprayers/gilmour-six-gallon-hose-end-385

20 Gallon Hose End:  http://www.gotosprayer.com/sprayers/hose-end-sprayers/gilmour-20-gallon-hose-end-390

Solo HD:  http://www.gotosprayer.com/sprayers/pump-sprayers/one-gallon-solo-hd