Nordson EFD

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Retainer Systems

Molded from high-tensile, clear plastic, Optimum® cartridge retainers make it easy to visually monitor fluid levels during dispensing – an industry first. 

Large, textured ribs provide an ergonomic grip for simplified retainer cap installation. Locking tabs snap into dents on the retainer body with an audible click to confirm proper installation with minimal effort. This keeps cartridges secure within the retainer during use.

A convenient push-in air line connector on top of the cap eliminates the need for bayonet connectors.

Retainer systems are available in 2.5 oz (75 ml), 6 oz (180 ml), 12 oz (360 ml), 20 oz (600 ml) and 32 oz (960 ml) capacities. In addition, Nordson EFD offers retainer systems with 0-15 psi and 0-100 psi regulators.

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Safety Data SheetsView important safety information.


Part Numbers

Cartridge Retainer Systems
Retainer Systems* Retainer Bodies
Part # Size Part # Size
7012430 2.5 fl oz (75 ml) 7013857 2.5 fl oz (75 ml)
7012433 6 fl oz (180 ml) 7013858 6 fl oz (180 ml)
7012436 12 fl oz (360 ml) 7013859 12 fl oz (360 ml)
7012439 20 fl oz (600 ml) 7013860 20 fl oz (600 ml)
7013899 32 fl oz (960 ml) 7013900 32 fl oz (960 ml)
Retainer Cap Assemblies
Part # Size
7012531 2.5, 6, 12 fl oz (75, 180, 360 ml)
7012532 20, 32 fl oz (600, 960 ml)
Retainer Cap O-ring Kits (2/pkg.)
Part # Material Size
7014373 Buna 2.5, 6, 12 fl oz (75, 180, 360 ml)
7026914 EPR 2.5, 6, 12 fl oz (75, 180, 360 ml)
7026915 Viton 2.5, 6, 12 fl oz (75, 180, 360 ml)
7014372 Buna 20, 32 fl oz (600, 960 ml)
7026916 EPR 20, 32 fl oz (600, 960 ml)
7026917 Viton 20, 32 fl oz (600, 960 ml)

* Note: For retainer systems with 100 psi and 15 psi regulators, see Tanks, Reservoirs, and Pumps. The retainer cap O-rings are available in three different materials. Please select the one most compatible with your fluid. Standard O-ring material is Buna. Viton is a trademark of E.I. DuPont.