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RD40 universal screw interface
There are two hole opening options: breathing hole and exposed head
This new model
This product is designed for fetish use only
The edges are neatly fused
Respiratory Flow Regulating Valve RD40 universal screw interfaceProduct Description By rotating the knob on the air valve, you can control the amount of airflow. Turning it clockwise increases the amount of airflow. Turning it counterclockwise increases the amount of airflow. It can be used with any gas mask with an RD40 thread. The air valve is compatible with all gas masks in the store. Product Specifications Material: PLA filaments (100% biodegradable) Color: Black Interface: Compatible with all RD40 threads
US$ 16.50
US$ 21.00
US$ 274.50
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