Pro Hopper

[Hydros]

unknown years

This is one of the best blocks I have seen and may have be introduced in the late 90's early 00's
Here is the motor side, note motor pin is at about 12:00 in relation to mounting position

[Hydros]

pump side

if you note, the block appears to be made to pump out the top port/s.

interesting addition of the o-ring on the block. also, note the block has a much larger pressure port.

pump head was not checked at this time

also note the extra large return port

also note the multiple mounting holes

[Hydros]

This image shows this block was made for pressured tanks, as you can also see the non threaded hole at approx 2:00 just inside of the o-ring.

On top it looks like it says 130 PSI MAX, but may instead be I 30 PSI MAX