Plastic Hose T-Piece Reducer Connector — Vacuum Tee Joiner for Air & Water Lines
Plastic Hose T-Piece Reducer Connector — Vacuum Tee Joiner for Air & Water Lines
Plastic Hose T-Piece Reducer Connector — Vacuum Tee Joiner for Air & Water Lines
Plastic Hose T-Piece Reducer Connector — Vacuum Tee Joiner for Air & Water Lines
Plastic Hose T-Piece Reducer Connector — Vacuum Tee Joiner for Air & Water Lines
Plastic Hose T-Piece Reducer Connector — Vacuum Tee Joiner for Air & Water Lines
Roll over image to zoom in Click on image to zoom
Plastic Hose T-Piece Reducer Connector — Vacuum Tee Joiner for Air & Water LinesPlastic Hose T-Piece Reducer Connector — Vacuum Tee Joiner for Air & Water LinesPlastic Hose T-Piece Reducer Connector — Vacuum Tee Joiner for Air & Water LinesPlastic Hose T-Piece Reducer Connector — Vacuum Tee Joiner for Air & Water LinesPlastic Hose T-Piece Reducer Connector — Vacuum Tee Joiner for Air & Water LinesPlastic Hose T-Piece Reducer Connector — Vacuum Tee Joiner for Air & Water Lines

Plastic Hose T-Piece Reducer Connector — Vacuum Tee Joiner for Air & Water Lines

HomeDIYer
No reviews

By HomeDIYer®

Price:
$3.93 USD
Stock:
In stock (500 units), ready to be shipped

Payment & Security

Ach Direct Debit Amazon American Express Apple Pay Bancontact Diners Club Discover Google Pay iDEAL Wero Mastercard PayPal Shop Pay USDC Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Quantity Discount Promotion
🎯 BULK DISCOUNT: Buy More, Save More!
Buy 2 Items
5% OFF
Buy 4 Items
10% OFF
Buy 6 Items
15% OFF
✅ Auto-discount • 🔄 Mix & match
Expert

DIY Expert Support

Get fitment advice & recommendations

Mon-Fri, 8:30AM-8PM
WhatsApp WhatsApp Email
⚡
24-Hour Fast Ship
🚚
Arrives in 3-14 days
🌍
Global Reach
↩️
30-Day Returns
🌱 1 tree planted with every purchase

Description

Plastic Hose T-Piece Reducer Connector — Split Your Air or Water Line Without the Hassle

Whether you're routing coolant through an engine bay, splitting a vacuum line under the hood, or branching an aquarium water feed, finding a reliable plastic hose T-piece reducer connector in the exact bore size you need can be surprisingly frustrating. This product is designed for DIYers, hobbyists, automotive enthusiasts, and small-scale plumbing projects who need a clean, lightweight solution for splitting or reducing flexible hose runs.

Each connector is a T-shaped barbed fitting machined from rigid plastic, available in a wide range of sizes from 4mm to 18mm inner diameter. The size format follows the convention Inner Diameter 1 – Length – Inner Diameter 2 (all in mm) — for example, a 6 - 12 - 6mm connector has a 6mm (≈1/4") bore on all three ports and a 12mm (≈1/2") body length. Reducer variants allow you to transition between two different hose diameters in a single fitting. Available in quantities of 1, 2, 4, or 10 pieces per order.

Typical use cases include automotive vacuum hose tee splitters for brake boosters and MAP sensors, aquarium and pond water line branching, and low-pressure air distribution in workshop or hobby setups — all scenarios where a compact, corrosion-resistant hose tee joiner outperforms metal alternatives.

ℹ️ Compatibility Note: These are barbed push-fit connectors. They are designed for flexible hose and silicone tubing. Match the connector's inner diameter to your hose's outer diameter for a secure friction fit. Hose clamps (not included) are recommended for pressurized applications.
⚠️ Size Confirmation: The size format is ID1 – Body Length – ID2 in mm. If you are unsure which size fits your hose, please measure your hose's outer diameter and contact us before ordering.

✅ Key Features of These Plastic Hose T-Piece Reducer Connectors

  • 🔀True T-Branch Design — Three-port barbed layout lets you split one hose feed into two outlets, or merge two lines into one, without additional adapters or unions.
  • 📐Wide Size Range — Available from 4mm to 18mm inner diameter with multiple body lengths, covering the most common metric hose sizes used in automotive vacuum tee splitter and aquarium plumbing applications.
  • 🧪Corrosion-Resistant Plastic Construction — Lightweight rigid plastic resists rust and oxidation, making it a practical alternative to metal fittings for water, coolant, and vacuum line routing.
  • 🔧Tool-Free Installation — Barbed ends push directly into flexible hose or silicone tubing; no threading, soldering, or special tools required for most low-pressure hose tee joiner applications.
  • 📦Flexible Quantity Options — Order 1, 2, 4, or 10 pieces per variant so you can grab a single replacement or stock up for a larger pipe fitting project without overpaying.
  • ⚖️Reducer-Capable Variants — Select size combinations allow you to connect two different hose diameters in one fitting, eliminating the need for a separate reducer and a standard tee connector.

📐 Technical Specifications — Plastic Hose T-Piece Connector

Product Type Barbed T-Piece Hose Connector / Reducer Tee Joiner
Material Rigid plastic (corrosion-resistant)
Connection Style Barbed push-fit (friction / hose clamp secured)
Number of Ports 3 (T-configuration)
Inner Diameter Range 4mm (≈5/32") to 18mm (≈11/16")
Body Length Range 6mm (≈1/4") to 20mm (≈13/16") — see variant options
Size Format ID1 – Body Length – ID2 (all in mm)
Available Sizes See variant options (22 size combinations)
Quantity per Order 1 / 2 / 4 / 10 Pcs — see variant options
Suitable Media Air, water, coolant, vacuum (low-to-medium pressure)
Pressure Rating Contact us to confirm for your specific application
Hose Clamp Required Recommended for pressurized use (not included)
Color / Finish See variant options
Country of Origin Contact us to confirm

❓ Frequently Asked Questions

How do I choose the right size T-piece connector?

The size format shown is Inner Diameter 1 – Body Length – Inner Diameter 2 (all in mm). Match the inner diameter values to your hose's outer diameter for a snug barbed fit. For example, a 6 - 12 - 6mm connector typically fits 6mm OD hose on all three ports. If you're reducing between two hose sizes, choose a variant where each diameter matches the respective hose. When in doubt, measure your hose OD and contact us to confirm before ordering.

What is the inch equivalent of these metric sizes?

Common approximate conversions: 4mm ≈ 5/32", 6mm ≈ 1/4", 8mm ≈ 5/16", 10mm ≈ 3/8", 12mm ≈ 1/2", 14mm ≈ 9/16", 16mm ≈ 5/8", 18mm ≈ 11/16". These are approximate — always verify against your hose's actual outer diameter before ordering.

How much pressure can these T-piece connectors handle?

These plastic hose connectors are generally suited for low-to-medium pressure applications such as vacuum lines, coolant routing, and low-pressure air systems. They are typically not rated for high-pressure hydraulic use. If your application exceeds generally accepted low-pressure ranges, please contact us to confirm suitability before ordering.

Are these connectors suitable for outdoor or wet environments?

The plastic construction is inherently corrosion-resistant and generally performs well in wet or damp environments. However, prolonged UV exposure may affect material integrity over time. For outdoor installations, consider shielding the connector from direct sunlight where possible.

What hose or tubing types are compatible with these fittings?

These are barbed push-fit connectors designed to work with standard flexible hose and silicone tubing. They are generally compatible with metric-sized hose commonly used in automotive, aquarium, and DIY plumbing applications. Thread compatibility does not apply — these fittings rely on a friction or hose-clamp fit over the barbed ends.

Can I use these for fuel or chemical lines?

These connectors are generally intended for air, water, coolant, and vacuum applications. Compatibility with fuels, solvents, or aggressive chemicals depends on the specific plastic material. We recommend contacting us to confirm chemical compatibility before use in fuel or chemical systems.

Do I need hose clamps to secure the connection?

For low-pressure and vacuum applications, a snug friction fit over the barbed connector is often sufficient. For higher-flow or vibration-prone setups, small hose clamps are recommended to ensure a leak-free seal. Clamps are not included but are widely available at most hardware stores.

🛒 Select your size and quantity above, then add to cart — ships from our US warehouse.

You may also like

Recently viewed