GRACO Four-Battery Control Box without Controller and Includes ASC 12/12 One Panel Charge Controller - (SKU: B52400) Externally accessible air valve for

Externally accessible air valve for easy

The part is intended to secure and facilitate the purging of the tip retainer mechanism

correct mating

Clean the sight glass and mating surfaces thoroughly before fitting the new gasket

Narrow fan width (6–8 inches) for detailed work

GRACO Four-Battery Control Box without Controller and Includes ASC 12/12 One Panel Charge Controller - (SKU: B52400) Externally accessible air valve forThe GRACO B52400 is a modular control box designed for DC powered chemical injection systems. It is engineered for heavy duty performance and houses up to four batteries, with a removable sub plate for easy access and serviceability. The box is typically constructed from durable plastic or metal (specific material not specified for this part number, but modular boxes are available in both). It is intended to manage and protect battery and charge