Aventics Rexroth
Aventics R412014671 Soft Start Valve AS1-SSV-G014-FIA
The Vinyl Ester Resin- 4 Gallon Kit with MEKP Catalyst has a good reputation among boat builders.
Aventics R412014666 Flow Control Valve AS1-SOV-G014-3/2
You will find that this ultrasonic cleaning solution removes carbon from piston rings effectively.