GRACO RETAINER, SEAL - (SKU: 189997) Up to 50 GPM (189

Up to 50 GPM (189 L/min) for metal models

2 m) hose and is engineered for heavy-duty

but it is intended to facilitate the mechanical operation of the equipment

and GL-43 series

Hand-tighten the nut to avoid over-torquing and thread damage

GRACO RETAINER, SEAL - (SKU: 189997) Up to 50 GPM (189The GRACO 189997 RETAINER, SEAL is a replacement part designed to secure and maintain the integrity of seals within GRACO pressure relief valve assemblies. Its material is not explicitly stated in available documentation, but it is typically constructed from durable materials compatible with industrial fluid handling systems. Its intended use is to ensure proper sealing and prevent leakage in GRACO equipment, particularly in pressure relief valve