stonylab Glass Y-Shaped Connecting Adapter, Borosilicate Glass Y Shape 3-Way Connector Adapter with One Inner and Two Outer 24/40 Standard Taper Joints for Laboratory Lab Supply: Amazon.com: Industrial & Scientific
24/40 Reverse Y Shape Connecting Adapter
Plastic Aquarium Connector | Water Pipe Tee Adapter | Pvc Aquarium Connector - 1pcs - Aliexpress
DREAMGRIP Universal Lightning 2 Way Y-Shape Adapter to Female Jack TRRS Audio Splitter - DREAMGRIP™
Nalgene™ Tubing Y-Type Connectors
Amazon.com: Mini Y Shaped 3.5Mm Jack Stereo Audio Headset Splitter Connector Adapter Keyr : Cell Phones & Accessories