Technic Systems offers...
Spool Valves

3/4 way, Size 1/8" to 1/4", 2/3 position, BodyPorted/Subbase  Ported, NC/NO, Hand Lever, Foot Lever, Roller, Button, Single Pilot, Double Pilot,Selector Switch

Midget Poppet Valves

3 way, Size 1/8", NC Plunger, Roller, Single Pilot, Double Pilot, Lock Down Lever, One Way Trip Lever

Poppet Valves
3/4 way, Size 1/4" to 1",2 position, Body/ Sub Base Ported