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🛡️ Elevate your rear camera game—capture every detail, glare-free and crystal clear!
The VIOFO CPL-300 is a precision-engineered circular polarizing filter designed exclusively for VIOFO A229, A139, and T130 rear cameras. Featuring a multi-resistant coating, it protects against scratches, fingerprints, oil, and water while reducing glare and reflections. This filter enhances color saturation and contrast by up to 25%, delivering sharper, more vibrant footage day or night. With easy installation and a 12-month warranty, it’s the essential upgrade for professionals demanding flawless rear camera performance.







| ASIN | B0F1YF8WK4 |
| Best Sellers Rank | #26 in Camera Lens Polarizing Filters |
| Brand | VIOFO |
| Built-In Media | CPL-300 |
| Coating Description | Multi Coating |
| Compatible Devices | VIOFO A229/A229 Plus/A229 Pro/A139/A139 Pro/T130 Rear Camera, VIOFO T130, VIOFO A139, VIOFO A139 Pro |
| Customer Reviews | 4.1 4.1 out of 5 stars (35) |
| Enclosure Material | Optical Glass, Plastic |
| Manufacturer | VIOFO |
| Manufacturer Part Number | CPL-300 |
| Media Type | ProductImage |
| Model Name | CPL-300 Filter |
| Special Effect | Enhancing |
| Thread Size | 38.5 Millimeters |
| Warranty Description | 12 months |
| Water Resistance Level | Water Resistant |
D**K
Clear up the glare in your rear view videos
Cleans up the reflective glare in the video making details easier to see.
U**N
Does the job
This worked for my generic Apple CarPlay/Android Auto aftermarket head unit front dashcam (this camera is integrated on the head unit). After applying the filter the colors look way better and not washed out. The clarity has also improved - I could legibly read some license plates after reviewing SD card video footage. The visuals look about 25% clearer with the filter. Easy to apply and does the job.
W**F
Helps with reflection
First one was cracked but I was sent a replacement. They are pretty fragile so have to be careful when installing. Didn't help that I did not buy it till after the rear camera was installed. Unlike the front you have to unstick it so I had to rotate camera and install. Save your self some trouble and install filter before mounting camera.
M**O
A must if you want good quality image on the rear camera of Viofo A229 Plus.
Great accesory for the rear camera of my Viofo A229 Plus.
V**C
Not as good as described!
Worst product ever! The clear protector plastic doesn't come off easily or not at all. The sticky back to adhere to the lens is not strong enough to keep the lens in place. Minus 1 star.
S**R
not what I hoped for
the lens isn't meant for my camera but none the less once attached it's still a cpl filter the lens does help slightly but only slightly does not make a major improvement in the video playback unfortunately
A**X
Great product
Great product and quality. Would definitely buy again.
A**K
Helped remove Windshield Glare
Worked well and helped relieve Windshield glare.
Trustpilot
1 month ago
1 week ago