Automotive – Lighting & Electronic venting

Lead-Acid Battery Vents

Controlled Airflow, Venting, & Optimized Back Pressure

Porex Lead-Acid Battery Vents Improve Automobile Safety

Lead-acid batteries are at the heart of any automotive vehicle – serving as the source which powers the engine as well as the car’s accessories. As the largest global supplier of battery vents, Porex has the expertise and experience to support your lead-acid battery venting and safety needs, ensuring a controlled airflow and optimized back pressure which can help to prevent acid spillage and aerosol emissions.

Rectangular Vents
Round Vents

Rectangular Vents	Thickness		Width		Length
Item #	Inches	mm	Inches	mm	Inches	mm
XA-5019	0.106″ – 0.120″	2.70 – 3.06	0.228″ – 0.244″	5.80 – 6.20	0.935″ – 0.955″	23.75 – 24.25
XA-5020	0.108″ – 0.120″	2.75 – 3.06	0.228″ – 0.244	5.80 – 6.20	1.171″ – 1.191″	29.75 – 30.25
XS-7499	0.122″ – 0.130″	3.10 – 3.30	0.378″ – 0.394″	9.60 – 10.00	0.612″ – 0.630″	15.55 – 16.00
XA-5001-3	0.128″ – 0.148″	3.25 – 3.75	0.535″ – 0.559″	13.60 – 14.20	0.524″ – 0.547″	13.30 – 13.90

Round Vents	Diameter		Thickness
Item #	Inches	mm	Inches	mm
XA-5008-1	0.229″ – 0.243″	5.82 – 6.18	0.110″ – 0.126″	2.80 – 3.20
XA-6404	0.384″ – 0.404″	9.75 – 10.25	0.148″ – 0.167	3.75 – 4.25
XS-9017	0.390″ – 0.398″	9.90 – 10.10	0.148″ – 0.167″	3.75 – 4.25
XA-5027	0.390″ – 0.398″	9.90 – 10.10	0.150″ – 0.165″	3.80 – 4.20
XA-5666	0.394″ – 0.409″	10.00 – 10.40	0.110″ – 0.130″	2.79 – 3.31
A-5914	0.451″ – 0.465″	11.45 – 11.81	0.147″ – 0.171″	3.74 – 4.34
7682	0.451″ – 0.465″	11.46 – 11.81	0.147″ – 0.171″	3.73 – 4.34
XA-5029	0.461″ – 0.476″	11.70 – 12.10	0.157″ – 0.181″	4.00 – 4.60
41023	0.484″ – 0.503″	12.29 – 12.78	0.142″ – 0.162″	3.61 – 4.11
XA-5615	0.485″ – 0.502″	12.32 – 12.74	0.142″ – 0.162″	3.61 – 4.11
XA-5612	0.489″ – 0.503″	12.42 – 12.78	0.120″ – 0.130″	3.05 – 3.31
40003	0.489″ – 0.503″	12.78 – 12.42	0.120″ – 0.130″	3.05 – 3.30
XA-9402	0.492″ – 0.508″	12.50 – 12.90	0.118″ – 0.142″	3.00 – 3.60
41097	0.497″ – 0.508″	12.62 – 12.90	0.110″ – 0.122″	2.79 – 3.10
XA-5679	0.505″ – 0.519″	12.82 – 13.18	0.120″ – 0.130″	3.05 – 3.30
XS-8088	0.505″ – 0.519″	12.82 – 13.18	0.120″ – 0.130″	3.05 – 3.31
XA-5514	0.565″ – 0.585″	14.35 – 14.85	0.112″ – 0.131″	2.85 – 3.35
XS-56751	0.618″ – 0.634″	15.70 – 16.10	0.140″ – 0.159″	3.55 – 4.05
XA-5896	0.630″ – 0.644″	15.98 – 16.38	0.140″ – 0.160″	3.56 – 4.06
XA-5675	0.631″ – 0.644″	16.04 – 16.36	0.140″ – 0.160″	3.56 – 4.06
XA-5537	0.668″ – 0.682″	16.97 – 17.33	0.114″ – 0.134″	2.90 – 3.40
5441	0.745″ – 0.759″	18.92 – 19.28	0.125″ – 0.137″	3.18 – 3.48
XA-5812	0.748″ – 0.752″	19.21 – 19.71	0.100″ – 0.135″	2.55 – 3.43
XS-5793	0.781″ – 0.793″	19.85 – 20.15	0.110″ – 0.126″	2.80 – 3.20
XA-5024	0.784″ – 0.799″	19.90 – 20.30	0.144″ – 0.171″	3.65 – 4.35
XA-6022-1	0.839″ – 0.854″	21.30 – 21.70	0.051″ – 0.067″	1.30 – 1.70
XA-5009	0.880″ – 0.900″	22.36 – 22.86	0.149″ – 0.173″	3.79 – 4.39

Automotive Batteries

Porex has produced billions of porous plastic vents supplied to lead-acid battery manufacturers across the globe. These vents play a key role in ensuring the safety of the battery, designed to provide a durable, cost-effective solution that prevents sparks from entering as well as the potential for acid spillage and aerosol emissions. Partner with our team of engineers to create a venting solution specific to your automotive needs.

Prevents sparks from entering the battery, reducing chance of explosion
Reduces risk of acid spillage and aerosol emissions by providing controlled airflow, venting, and optimized back pressure
Easy assembly via heat welding or push-fit processing

Porex Virtek PTFE®
Porous polymer & fiber materials

Round & rectangular standard vents with a variety of thicknesses, widths, and lengths
Customizable shapes & sizes

Watch our On-Demand Webinar

Using Porous Polymers for Venting

Related Resources

Porex Virtek® IP-Rated Protection Vents Brochure

Explore the portfolio of robust Porex Virtek® IP-Rated Protection Vents for electronics and automotive applications.

Learn More

PTFE Video Venting Series: Porex Virtek PTFE vs ePTFE in a Battery Safety Vent Emergency Situation

A short video highlighting the advantages of Porex Virtek® PTFE over ePTFE in battery safety vent emergency situations.

Learn More

IP-Rated Vents for Automotive Applications Brochure

Discover the capabilities of POREX® IP-rated PTFE vents specifically designed for automotive applications, enabling rapid pressure equalization and ensuring effective protection.

Learn More