The GRACO 4428 is a valve plunger assembly designed for use in GRACO equipment
Durable construction for abrasive environments
Check all electrical connections periodically
Inspect filters and drains regularly for proper operation
ensuring optimal grease delivery and equipment maintenance
OilSafe® 1/4" (6.3mm) Grease Fitting Protector – Yellow (SKU: 291009) The GRACO 4428 is aThe OilSafe Grease Fitting Protector in Yellow size 1 4" (6. 3mm) (SKU: 291009) is a contamination blocking, color coded cap for most standard 1 4" (6. 3mm) grease (zerk) fittings. Yellow makes color coding easy for specific lubricants, machines, or routes. Each cap has a recessed label area (for snap in labels lens, sold separately), is rugged and reusable, and fits tightly to keep water, dust, and debris out. Supplied in bags of 100 for plant, shop,