20 Pack Aquarium Airline Splitter Outlet Cap Rubber End Caps 3/16 Inch Inner Diameter 5/8 Inch Height Seals Unused Ports for Fish Tank Air Lines Leak Proof Design No Hassle Fit

20-Pack Aquarium Airline Splitter End Caps, 3/16 ID
✔️ 20 pcs, 3/16 ID x 5/8 in H, black rubber end caps

These rubber end caps seal unused ports on aquarium splitter outlets, keeping air lines clean and leak-free in fish tanks and hydroponic setups.

✅ Size: 3/16" (4.5 mm) ID x 5/8" (16 mm) H
✅ Pack: 20 pieces
✅ Material: black rubber, leak-proof fit
✅ Purpose: seals unused ports on air line splitters

💡 What is an air line end cap used for in aquarium setups?

They seal unused ports to keep air lines clean and leak free.

- Seal unused ports to prevent leaks in air lines
- Handy for hobbyists managing aquarium air systems
- Easy to install on standard 3/16 ID tubing
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