The Fuji 5135-5 Pressure Tubes with Duck Bills, sold in a pack of 5 for:

• the 4200 T-PRO applicator

• the TAN7350 applicator

The duck bill fits in the lid and acts as a one way valve, to prevent tanning fluid from entering the pressure tube. The duck bill removes the need for a check valve in the pressure tube, so it’s easy to clean. It also has the advantage, compared with the older 2025T pressure tubes, of working with the T-PRO 4200 applicator as well as the TAN7350.

If you have more than 5 Mini Cups, consider the Fuji SUNLESS 8275 Cup Parts Kit. This includes 10 of the duck bills and pressure tubes, plus 10 replacement lid gaskets for tight seals. (You can also buy a 3-pack of the gaskets, Fuji #8201-ST.)