At a glance
- Original Factory ET-RFL300 Filter Specification Table
- ET-RFL300 Projector Filter
- Product Overview
- Why Projector Filters Need Regular Replacement
- Zorsika Equivalent Model vs. Original Specifications Comparison
- 3 Points to Avoid When Purchasing Filters
- FAQ
- Q: How often should the ET-RFL300 filter be replaced?
- Q: What is the difference between the Zorsika equivalent model and the original?
ET-RFL300 is an original filter for projector, fits 1 model, customized to original specifications, directly replaceable, 180-day warranty.


Original Factory ET-RFL300 Filter Specification Table
| Specification Item | Parameter |
|---|---|
| Brand | Original Factory / Zorsika |
| Original Model Number | ET-RFL300 |
| Zorsika Equivalent Model Number | Z-FLT-RFL300 |
| Material | HEPA High-Efficiency Filter Material |
| Compatible Models | 130 Models (Original Factory Series) |
| Recommended Replacement Interval | 2,000-3,000 Hours (Original Factory Official Technical Documentation) / 6-12 Months |
| Warranty Period | 180 Days |
| Compatibility | Compatible with Original 100%, Direct Replacement |
| Part No. | ET-RFL300 |
ET-RFL300 Projector Filter
Product Overview
ET-RFL300 is the original filter for the series projectors, using HEPA high-efficiency filter material to block dust from entering the optical engine. The Zorsika equivalent model Z-FLT-RFL300 is custom-made to original specifications, with dimensions and mounting structure consistent with the original, allowing direct replacement, with a 180-day warranty.
Why Projector Filters Need Regular Replacement
The projector filter is the first barrier of the optical path dust prevention system. If the filter is clogged or damaged, dust entering the optical engine will accumulate on LCD/DLP chips, causing black spots on the image, reduced brightness, or even optical engine failure. It is recommended to check every 2,000-3,000 hours and replace every 6-12 months depending on the usage environment.
Zorsika Equivalent Model vs. Original Specifications Comparison
CD2100X,CD2105X,CD2110X,CD2115X,CD2116X,CK4055X,CK4155W,CK4155X,CK4255X,CM4050X,CM4150X,CM4151X,CR2150X,CR2155X,CR2160X,CR2165X,CR2270X,CR2275X,CR2276X,CR2305X,M280XS+C,M320XS+C,M350XS+C,MC280XS+,MC300X+,MC330X+,MC370X+,ME270XC+,ME310XC+,PT-LB280,PT-LB300,PT-LB303,PT-LB305,PT-LB306,PT-LB330,PT-LB332,PT-LB353,PT-LB355,PT-LB356,PT-LB360,PT-LB382,PT-LB383,PT-LB385,PT-LB386,PT-LB412,PT-LB423,PT-LB425,PT-LB426,PT-LW280,PT-LW312,PT-LW330,PT-LW333,PT-LW335,PT-LW336,PT-LW362,PT-LW373,PT-LW375,PT-LW376,PT-TW250,PT-TW340,PT-TW341R,PT-TW342,PT-TW343R,PT-TW350,PT-TW351R,PT-TW370,PT-TW371R,PT-TW380,PT-TW381R,PT-TX210,PT-TX310,PT-TX312,PT-TX320,PT-TX340,PT-TX350,PT-TX400,PT-TX402,PT-TX410,PT-TX430,PT-TX440,PT-UW282C,PT-UW317C,PT-UW332C,PT-UW365C,PT-UX283C,PT-UX315C,PT-UX326C,PT-UX333C,PT-UX334C,PT-UX335C,PT-UX336C,PT-UX343C,PT-UX363C,PT-UX383C,PT-UX385C,PT-UX413C,PT-UX415C,PT-UX425C,PT-WW3100,PT-WX3300,PT-WX3400,PT-WX3401,PT-WX3700,PT-WX3901,PT-WX4200,PT-X3260STC,PT-X3261STC,PT-X3270STC,PT-X3271STC,PT-X3272STC,PT-X3283STC,PT-X329C,PT-X338C,PT-X346C,PT-X347C,PT-X3530STC,PT-X3835STC,PT-X3861STC,PT-X3871STC,PT-X3872STC,PT-X3873STC,PT-X388C,PT-X426C,PT-XW318C,PT-XW3360STC,PT-XW3370STC,PT-XW3383STC,S303,理光 HD6900
3 Points to Avoid When Purchasing Filters
- Differentiate disposable vs. washable filters — Some low-end models use washable filters; buying the wrong type won't fit;
- Check the filter structure — Some models have an integrated frame design; when purchasing replacement, confirm whether the frame is included;
- Verify dimensions — Filter sizes vary significantly across different series of the same brand.
FAQ
Q: How often should the ET-RFL300 filter be replaced?
A: For normal office environments, replace every 6-12 months; for moderate dust environments like classrooms and meeting rooms, every 4-6 months; for heavy dust environments like construction sites and workshops, every 2-3 months. Observe the filter color; if it turns dark gray or black, it must be replaced.
Q: What is the difference between the Zorsika equivalent model and the original?
A: It is custom-made to original specifications, can be directly replaced, and has no compatibility issues. With a 180-day warranty, after-sales response is faster.