Pest Control Products online store carries a wide array of Sprayer Systems from Pump to Compression Sprayers. And to back those up they also carry a selection of replacement parts like this Glycerin Filled Gauge. With Pest Control Products you can rest assured that they will keep you up and running the whole season through.
This would make the perfect case for a DJ or as a tack box for your 4H'er. It's the Caddy Custom Case from Nag's Tack and Western. I use one of their cases for my photograpy equipment and I just love it. Tough and durable, but they look sleek and professional.