Check it out on a google search its a horticulture pump made in Germany , viton seals, poly body if its a good price might be worth it but check the psi, gpm, and what type of motor, if its electric they may run on 50 mhz and 240 volts
The MC 18 pump is made by Comet. I have the MC16 versionThere are no internal parts to break down from SH. However there is a Stainless Steel part on the regualtor which is coated. In time this coating may wear and the regulator may need replacing. The good news is that the regulator unscrews and comes right off and a new one is only about $30.00 I've had mine now for about 6 months and have not had a problem with the regulator yet.
I had a small issue with mine but it is one that I caused myself. Mine is now back up and running again and spraying like a male cat. The MC 16 that i have is rated at 220psi max and 4gpm max. and runs off of a 5.5 Honda engine. The pump comes with the gear box and easily bolts right up to the 5.5 Honda.
I'm not too sure about the MC18 but my MC 16 has been a very good pump for me. I can also run 2 lines off mine to make it a 2 man spraying unit when need be.
Thanks for the reaponses guys... Larry that is the same pump , at least it looks the same. Only difference is the one I;m lookin at has a 4hp Honda powering it....Think I may bite the bullet and "get back in the game" ! Erich