Default size: inner diameter of the large opening is 130 mm, overall height is 133 mm, tail diameter is 35 mm, and insertion depth is 50 mm—perfectly suited for filling automotive windshield washer fluid.

Alkaline windshield washer fluid that drips onto belts, engines, or wiring harnesses can accelerate their degradation. This solution has finally resolved the longstanding issue of overflow when refilling windshield washer fluid.

Of course, you can also scale the design to better meet your specific needs.