4mm 3-Way Aquarium Air Pump Tee Connectors – 10 Pack
4mm 3-Way Aquarium Air Pump Tee Connectors – 10 Pack
4mm Plastic 3-Way Aquarium Air Tubing Tee Connectors – 10 Pack
Keep your aquarium air lines perfectly organized and flowing with these durable 4mm plastic tee connectors. Designed to split, extend, or repair standard aquarium air tubing, this 10-piece set is an essential accessory for any fish tank or aquaponics setup. The T-shaped splitter head allows you to connect multiple air lines from a single pump — ideal for powering airstones, filters, decorations, and more simultaneously.
Product Highlights
- Material: High-quality, durable white plastic — lightweight yet sturdy for long-term underwater use
- Fitting Size: 4mm outlet outside diameter — fits standard 4mm soft air tubing
- 3-Way Tee Design: Splits one air line into two, or joins multiple lines together with ease
- Versatile Use: Perfect for mending broken tubing or extending your existing air pump line setup
- Pack of 10: Great value — stock up so you always have spares on hand
- No Tools Required: Simply push the tubing onto the connectors for a secure, snug fit
- Compatible With: Most standard aquarium air pumps and 4mm soft airline tubing
Specifications
| Material | Plastic |
| Color | White |
| Outlet Outside Diameter | 4mm |
| Compatible Tubing | 4mm soft air pipe/hose |
| Quantity | 10 Pcs Tee Connectors |
| Country of Origin | Made in China |
What's in the Box?
- 10 × 4mm Plastic 3-Way Tee Air Line Connectors
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Learn more: U.S. Fish and Wildlife Service
Frequently Asked Questions
Q: What size aquarium air tubing do these 4mm tee connectors fit?
A: These connectors are designed specifically for standard 4mm soft airline tubing, which is the most common size used with aquarium air pumps. Simply push the tubing onto each arm of the tee connector for a secure, airtight fit.
Q: Can I use these 3-way tee connectors to split air from one pump to multiple devices?
A: Yes! The 3-way (T-shaped) design allows you to split a single air pump output line into two separate lines, so you can run two airstones, bubble decorations, or sponge filters from one pump simultaneously. They can also be used to join or extend existing tubing runs.
Q: Are these connectors safe for use in a fish tank with live fish?
A: These connectors are made from durable plastic with no high-concern chemicals listed. They are intended for use with aquarium air lines (not submerged directly in water) and are a standard accessory type widely used in fish tank setups. As with any aquarium accessory, rinse before use.
Q: How many connectors are included in one order?
A: Each pack contains 10 pieces of 4mm plastic tee connectors, giving you plenty of spares for repairs, extensions, or future tank expansions.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.