Bean Pounder

Replacement parts

Sourcing

Machine-specific alternatives for hard-to-find fittings, tubing, and other replacement hardware.

Lelit Elizabeth
6 mm supply-side plumbing replacement
A practical replacement path when the original Bean Pounder tee is unavailable.

Any fitting or seal can eventually develop a leak after enough heat cycles, pressure changes, and age. The tee used in the Elizabeth kit is fairly uncommon to find off the shelf and is generally sold only in bulk. If I cannot provide a direct replacement, the parts below are an easier-to-source alternative.

The Elizabeth uses uncommon 5 mm tubing in this section. Instead of trying to adapt one failed fitting, replace the entire supply side with more common 6 mm tubing—from the pump tee to both the boiler and the OPV connection. This conversion also saves money over time because standard 6 mm tubing and fittings are easy to buy off the shelf, while Lelit-specific 5 mm parts are harder to source and generally more expensive.

Plumbing route

The tee mounts at the pump and divides the 6 mm supply into two branches.

Pump
6 mm tee57222-6-1/8
Transducer fittingPLF6-02
Pressure transducer
Right-angle fittingNPQH-L-G18-Q6-P10
OPV tee

Replacement fittings

The first two fittings convert the supply side to 6 mm tubing. Use the PLF6-02 if the pressure-transducer elbow also needs replacement.

Aignep 57222-6-1/8 nickel-plated brass run tee
At the pumpAignep USA
57222-6-1/8 run tee
Two 6 mm push-in tube connections with a 1/8-inch universal male center connection. One tube runs to the OPV fitting and the other runs to the boiler.
Usually sold in bulk quantitiesView at DigiKey
Festo NPQH-L-G18-Q6-P10 nickel-plated brass elbow fitting
At the OPVFesto Corporation
NPQH-L-G18-Q6-P10 elbow
Orientable G1/8 threaded elbow with a 6 mm push-in tube connection. This replaces the supply-side fitting at the OPV.
PLF6-02 female elbow fitting for 6 mm tubing and a 1/4-inch threaded connection
Pressure transducerPLF series
PLF6-02 female elbow
A 6 mm push-in tube connection with a 1/4-inch female threaded elbow. This is the replacement fitting that threads onto the pressure transducer.
Select the PLF6-02 optionView at AliExpress
Before replacing plumbing

Unplug the machine, let it cool completely, and release all pressure before opening it or disconnecting any plumbing.

Use 6 mm tubing that is suitable for potable water and rated for the temperature and pressure at this location. Confirm every fitting is fully seated, then leak-test the cold and hot system before returning the machine to service.

© 2026 Bean Poundermade in Seattle by Jaesuk Lee & friendsbuilt for pounding beans.