InterMountain Procor Pressure Flow Hopper (48903-15) | Halliburton #80425 | HO Scale

InterMountain Procor Pressure Flow Hopper (48903-15) | Halliburton #80425 | HO Scale

Marsoni

M251S

$49.99

Get it in 3 business days with 1 day shipping. Friday, May 29

InterMountain Procor Pressure Flow Hopper (48903-15) | Halliburton #80425 | HO ScalePressure flow hopper cars, commonly known as "Flexi Flo" hoppers, revolutionized the transportation of dry bulk commodities by rail. Developed in the 1960s, these cars utilized pressure differential technology to efficiently unload materials such as cement and other dry bulk goods. In 1964, the American Car & Foundry (ACF) introduced the PD3500, a 3,500 cubic foot pressure differential covered hopper, branded as "Flexi Flo." This design featured a

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I have been using a ball launcher to exercise my Border Collie. Up till now I have been using the launcher to throw tennis balls. Even with the launcher I can only throw the balls a couple of hundred feet. These balls go MUCH further. I am using a steep horse pasture to throw the balls and I have to make sure that I don't launch them past the fence at the end of the pasture. I think the thing that makes them go further is their weight combined with a smooth surface. They also have incredible bonce. They hit and just shoot way up into the air. Also, the tennis balls I was using were green. In my horse pasture they were easy for the Collie to miss since they blended right in to the grass. These balls with the orange with blue stripes are far easier for the dog to find. It's really hard to tire out a Border Collie but these balls do the job.

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Reviewed in the United States on January 15, 2026