Parker Gresen V20 Valve. SAE8 Ports. SAE10 Ports. 1/2" NPT Ports. 20-08-D4, Double acting( 4Way/3position), cylinder spool (A/B blocked at neutral), 3 position detent. 20-10-D4, Double acting( 4Way/3position), cylinder spool (A/B blocked at neutral), 3 position detent ,SAE10 Ports.
eBay