lubrication valve Brass Adjustable Lube Oil Distributor Value Manifold Block 2/3/4/5/6/7/8/9/10 Way - AliExpress
Aluminum 5 Way 6mm In 4mm Out Adjustable Lube Oil Piston Distributor Value Manifold Block For Centralized Lubrication System - Pipe Fittings - AliExpress
FLO Lube Tip - How a Single-Block Progressive Metering Valve Operates - YouTube