Manufacturer: Proform. Proform 66774 Valve Spring Tester-300LB; Heavy Duty Model; Max 2in. Spring Dia. Can be bench or vise mounted. Engine Valve Spring Tester. Tool Type: Valve Spring Testers. Category: Spring Tester-300LB.

Brand: Proform
Manufacturer Part Number: 66774
Type: Engine Valve Spring Checker
Warranty: Yes
UPC: 037995367740