K309 Service Kit MOA/MAA

Gast K309 service/rebuild/repair kit used on oil-less diaphragm models with internal filtration. Service kit returns your unit to original factory performance specifications. Recommend for service every 2 years. 1 kit required for DOA models. 2 kits required for DAA models. Service kit includes: Leaf valves, Limiters, Gasket, Filter Elements.