There has been a huge price increase in that unit from PumpTec recently!
I can't imagine a pressure pump system without a pressure gauge though, so I have come up with a pressure gauge and a Dwyer meter chemical injection system for this unit.
I have also set it up to work from either a direct faucet pressure hookup, or it will draw from a fresh water tank without a pump to feed it.
It's a good pump for carpet and upholstery cleaning, and packs plenty of
punch for tile and grout cleaning also.