The Y-Tube Olfactometer – Stem 20 mm | Arm 20 mm is a precision laboratory setup designed to evaluate insect olfactory behavior under controlled experimental conditions. Built around a high-quality glass Y-tube assembly, the system enables insects to choose between two odor sources, allowing accurate analysis of attraction, repellency, and behavioral preference.

The Y-tube features a 20 mm diameter stem and two 20 mm diameter arms, with a stem height of 120 mm, arm height of 80 mm, and a 45° arm angle. These dimensions are engineered to provide smooth airflow transition, reduce turbulence, and support natural insect movement, ensuring repeatable and reliable experimental outcomes.

High-quality PTFE air connectors and silicone tubing provide excellent chemical inertness, preventing contamination or adsorption of volatile compounds and preserving odor integrity during testing.

A dedicated air pump suitable for Y-tube applications delivers steady airflow. Two precision air flow control meters (0.1–1 LPM each) allow independent regulation of airflow through both arms, ensuring balanced and reproducible testing conditions.

The setup includes two glass jars for air purification and humidification, designed to remove unwanted VOCs and condition the air for maintaining natural insect behavior. Each jar incorporates a merged inlet and outlet single-head configuration for easier setup and reduced leakage.

Additionally, two glass volatile collection jars with merged inlet and outlet ports allow controlled introduction or collection of odor compounds during experiments, supporting advanced chemical ecology and behavioral studies.

This Y-tube olfactometer system is widely used in entomology, chemical ecology, pest management research, insect behavioral assays, and insect–plant interaction studies. Its modular construction ensures easy cleaning, flexible setup, and dependable long-term performance for academic, institutional, and industrial research laboratories.