6 Best Alternatives to the UniTak3D 197 x 131mm Steel (2026)
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You are looking for unitak3d original photon mono 2 photon alternatives because your current FEP film needs replacement or you want better features. The UniTak3D 197 x 131mm Steel Ring FEP Film offers high transparency and heat resistance up to 204 ℃. Its integrated steel ring design simplifies installation for Photon Mono 2 and Mono 4 owners. However, you might prefer a different size, a bulk pack for cost efficiency, or a metal tank for durability. Some users may also seek a thinner profile or a brand with a different warranty structure.
The alternatives listed here were chosen because their specifications overlap with the original product. Each option serves specific resin printing needs, from bulk 200x140mm films to large-format nFEP sheets. You can compare dimensions, release film types, and package quantities to find the best fit. Whether you need a direct replacement for your Mono 4 or a spare tank for your Saturn 3, these specs help you decide. Focus on the size and material properties that match your printer model to ensure proper fit and print quality.
How alternatives compare to UniTak3D
ELEGOO Saturn 2 and 3 Metal Resin Tank with FEP
This ELEGOO option is a complete metal resin tank, not just a replacement film. It is designed for Saturn 2 and Saturn 3 printers, so it is not compatible with your Mono 2 or Mono 4. If you need a durable tank that resists warping and allows quick resin swaps, this is a robust upgrade. It measures 11.5 inches long and weighs 2.2 pounds. You lose the simplicity of swapping just a film sheet. Instead, you replace the entire vat assembly. Choose this if you own a Saturn printer and want a permanent, heavy-duty tank rather than a consumable film replacement for your Mono device.
KOYOFEI 200x140mm FEP Release Film 6-Pack
The KOYOFEI film comes in a 6-pack, offering a bulk solution for frequent replacements. It measures 200 by 140 mm, which is larger than the 197 by 131 mm size required by your Mono 2 or Mono 4. This size mismatch means it will not fit your printer directly without significant modification or waste. It is clear and designed for 140 by 200 mm printers. You get more sheets for your money, but you cannot use them with your current device. Pick this alternative only if you have a different printer with a larger build volume that accepts 200 by 140 mm films.
ELEGOO Mars 4/5 FEP Release Film 5-Pack
ELEGOO provides a 5-pack of FEP film specifically sized for Mars 4, 5, and 5 Ultra printers. The dimensions are 10 inches by 7.44 inches, which differs from your Mono series requirements. This product ensures smooth model release and high light transmittance for those specific Mars models. It is not a direct fit for your UniTak3D compatible printer. You gain a reliable supply of films for your Mars device. You lose the ability to use these sheets in your Mono 2 or Mono 4. Select this if you own a Mars printer and need a trusted, size-specific film replacement.
ANYCUBIC 2-Pack Integrated FEP Film
ANYCUBIC offers a 2-pack of integrated FEP films for the Mono 2, Mono 4, and Mono 4 Ultra. Like the UniTak3D, it features an integrated design that simplifies installation by removing the need to cut film or handle a separate steel ring. This is a direct functional alternative for your printer. It provides the same ease of maintenance and consistent UV light transmission. You might choose this if you prefer the ANYCUBIC brand or want a different packaging quantity. It matches the core requirements of your device. It is a practical swap that maintains the convenience of the integrated ring system.
CHINDRAG Mono 2 and 4 Integrated FEP Film
CHINDRAG supplies an integrated FEP film sized for the Mono 2 and Mono 4. It matches the 197 by 131 mm requirement of your printer. The integrated design allows for quick installation without cutting or dealing with loose steel rings. This offers the same practical benefits as the UniTak3D product. It prioritizes ease of use and consistent light transmission for your resin prints. You might select this alternative if you want to try a different brand with the same form factor. It fits your device perfectly. It is a straightforward replacement that maintains the workflow you are used to with integrated films.
Antinsky 280 x 450 mm nFEP Release Film
Antinsky provides a large nFEP PFA film sheet measuring 280 by 450 mm. This is significantly larger than the 197 by 131 mm film you currently use. It is intended for large-format printers like the Phrozen Sonic Mega 8k. The material offers high heat tolerance and transparency. You can cut this sheet to size, but it requires manual preparation. It is not a drop-in replacement for your Mono 2 or Mono 4. Choose this only if you have a large printer that needs a custom-sized vat floor. It is not suitable for your specific device due to the massive size difference.
Quick picks
Our 7 picks
UniTak3D 197 x 131mm Steel Ring FEP Film
Best for: Photon Mono 2 and Mono 4 owners
- Dimensions
- 197 * 131mm
- Maximum Temperature
- 204 ℃
- Release Film Type
- FEP
- Printing Technology
- Resin
View on Amazon: UniTak3D 197 x 131mm Steel Ring FEP Film Affiliate link
This is a replacement FEP film set for the UniTak3D Photon Mono 2 and Mono 4 resin printers. The sheets measure 197 by 131 mm and feature an integrated steel ring for quick installation. The material offers over 95% light transmittance and resists temperatures up to 204 degrees Celsius. You get two pieces per pack. This kit suits users who need reliable, direct replacements for their 10K resin printers.
Pros
- Integrated steel ring simplifies installation
- Over 95% light transmittance
- Resists heat up to 204 degrees Celsius
- Compatible with Photon Mono 2 and Mono 4
Cons
- Pack contains only two films
- No mention of included tools for installation
- Specific to 197 by 131 mm size
Good fit if
- You own a Photon Mono 2 or Mono 4 printer
- You want a direct replacement with a steel ring
- You need high transparency for stable UV curing
Skip if
- You use a printer with a different vat size
- You need a larger quantity of films per pack
- You require compatibility with other brands
Verdict: UniTak3D FEP Film 197x131mm provides a straightforward, size-specific solution for Mono 2 and Mono 4 owners. It fits you if you value easy installation and consistent light transmission for your resin prints.
ELEGOO Saturn 2 and 3 Metal Resin Tank with FEP
Best for: Saturn 2/3 users needing durable metal tanks
- Primary Material
- Anodized aluminum
- Dimensions
- 292.8*172.4*33mm
- Release Film Type
- FEP
- Printing Technology
- LCD
- Color
- Black
- Weight
- 2.2 pounds
View on Amazon: ELEGOO Saturn 2 and 3 Metal Resin Tank with FEP Affiliate link
This ELEGOO resin tank is built from anodized aluminum for the Saturn 2 and Saturn 3 printers. It measures 292.8 by 172.4 by 33 mm and includes a pre-installed FEP film. The metal construction offers better durability than standard plastic vats. You get a spare tank to swap resin colors quickly. The design keeps the FEP film off your workbench with bottom feet.
Pros
- Anodized aluminum construction for long-term durability
- FEP film pre-installed for immediate use
- Bottom feet prevent FEP contact with surfaces
- Includes extra lid to block dust and UV light
Cons
- Limited to Saturn 2 and Saturn 3 printer models
- Heavier at 2.2 pounds compared to plastic alternatives
- Requires separate purchase of FEP film replacements
Good fit if
- You own an ELEGOO Saturn 2 or Saturn 3 printer
- You want a durable metal tank instead of plastic
- You need a spare tank to switch resin colors
Skip if
- You use an ELEGOO Mars or Photon Mono series printer
- You prefer a lightweight plastic tank for easy handling
- You need a tank compatible with Saturn 4 models
Verdict: ELEGOO Saturn 2/3 Metal Resin Tank is a robust upgrade for Saturn 2 and Saturn 3 owners who value metal durability and quick resin swaps. It fits users who want a dedicated spare tank rather than a universal replacement.
KOYOFEI 200x140mm FEP Release Film 6-Pack
Best for: bulk replacement for 140x200 mm printers
- Dimensions
- 140 x 200 x 0.15mm
- Release Film Type
- FEP
- Film Thickness
- 0.15mm
- Printing Technology
- Resin
- Width
- 5.51 inches
- Weight
- 2.82 ounces
View on Amazon: KOYOFEI 200x140mm FEP Release Film 6-Pack Affiliate link
This is a pack of six FEP release films measuring 140 by 200 mm with a thickness of 0.15 mm. The films offer 95% light transmission for stable UV curing. They feature a low-friction surface to help prints release easily. The package includes printed instructions for installation. You should use this kit for ELEGOO Mars series or Anycubic Photon Mono printers that require this specific film size.
Pros
- Includes 6 replacement films
- 95% light transmission rate
- Low-friction non-wettable surface
- Printed installation instructions included
Cons
- 0.15 mm thickness is thicker than some competitors
- Limited to 140x200 mm size
- Does not fit the 197x131 mm UniTak3D printer
Good fit if
- You need a 6-pack of replacement films
- You use printers requiring 140x200 mm dimensions
- You want clear installation instructions
Skip if
- You need films for the 197x131 mm UniTak3D
- You prefer thinner 0.10 mm films
- You only need a single replacement film
Verdict: KOYOFEI 140x200mm 0.15mm FEP Film suits users needing a bulk pack for compatible resin printers. It is not suitable for the UniTak3D due to the size mismatch.
ELEGOO Mars 4/5 FEP Release Film 5-Pack
Best for: ELEGOO Mars 4/5/5 Ultra resin printing
- Dimensions
- 206*146mm
- Release Film Type
- FEP
- Film Thickness
- 0.15mm
View on Amazon: ELEGOO Mars 4/5 FEP Release Film 5-Pack Affiliate link
This ELEGOO FEP release film is designed for the Mars 4, Mars 5, and Mars 5 Ultra resin 3D printers. It measures 206 by 146 mm with a thickness of 0.15 mm. The film offers 95% UV light transmittance for faster curing. It features a smooth, non-stick surface that prevents resin adhesion and resists chemical wear. You get five clear films in this pack. It suits users who need reliable replacements for their specific printer models.
Pros
- High 95% UV light transmittance for accurate curing
- Smooth surface prevents wrinkles, scratches, and bubbles
- Chemical and wear-resistant non-stick material
- Easy model release without damage
Cons
- Limited to ELEGOO Mars 4, 5, and 5 Ultra models
- 0.15 mm thickness may be thinner than some alternatives
- Only compatible with specific Mars series printers
Good fit if
- You own an ELEGOO Mars 4, 5, or 5 Ultra printer
- You want a smooth surface for high-quality prints
- You need reliable UV transmittance for faster curing
Skip if
- You use a printer with different screen dimensions
- You prefer thicker films for durability
- You need compatibility with non-ELEGOO Mars models
Verdict: ELEGOO FEP Film for Mars 4/5/5 Ultra provides a smooth, high-transmittance surface for compatible printers. It is ideal for users seeking reliable, damage-free model release for their specific device.
ANYCUBIC 2-Pack Integrated FEP Film
Best for: Anycubic Mono 2/4 users wanting easy film changes
- Release Film Type
- FEP
- Printing Technology
- Resin
View on Amazon: ANYCUBIC 2-Pack Integrated FEP Film Affiliate link
This is a two-pack of FEP release films designed for Anycubic Photon Mono 2, Mono 4, and Mono 4 Ultra printers. The films feature an integrated design that eliminates the need for a steel ring or cutting. You get a quick setup process guided by an included tutorial. These consumable films help maintain print quality through regular replacement. The package includes two films, each measuring 0.75 inches in height.
Pros
- Compatible with Photon Mono 2, Mono 4, and Mono 4 Ultra
- Integrated design removes the need for a steel ring
- No cutting required for installation
- Includes installation tutorial
Cons
- Not compatible with fast printing modes
- Limited to 2.6 to 2.7 inch screen sizes
- Only two films included per pack
Good fit if
- You own an Anycubic Photon Mono 2, Mono 4, or Mono 4 Ultra printer
- You want to avoid cutting FEP film manually
- You prefer a quick setup without a steel ring
Skip if
- You use a printer with a screen larger than 2.7 inches
- You need films compatible with fast printing modes
- You require a bulk pack of more than two films
Verdict: ANYCUBIC Integrated FEP Film 2-Pack is a practical replacement for users of the Photon Mono 2, Mono 4, and Mono 4 Ultra who want to skip the hassle of cutting film and removing a steel ring during maintenance.
CHINDRAG Mono 2 and 4 Integrated FEP Film
Best for: Anycubic Mono 2/4 users seeking easy installation
- Dimensions
- 197x131x0.15mm
- Maximum Temperature
- 204°C
- Release Film Type
- FEP
- Film Thickness
- 0.15mm
- Printing Technology
- Resin
View on Amazon: CHINDRAG Mono 2 and 4 Integrated FEP Film Affiliate link
This is a pack of five integrated FEP release films designed for the Anycubic Photon Mono 2 and Mono 4 resin printers. The films measure 197x131x0.15mm and feature a high transmittance rate of over 95% to ensure stable UV lighting during prints. They are heat resistant up to 204°C. The one-piece design includes a ring, allowing you to replace the film quickly without cutting or disassembling parts. This set suits users who want a hassle-free maintenance routine for their resin printer vat.
Pros
- Integrated one-piece design with a ring for quick installation
- High light transmittance of more than 95%
- Heat resistant up to 204°C for stable long-term use
- Pack includes 5 films for extended use
Cons
- 0.15mm thickness is thicker than standard 0.1mm films
- Limited to Anycubic Photon Mono 2 and Mono 4 models
- Does not include the metal ring frame, only the film with ring
Good fit if
- You own an Anycubic Photon Mono 2 or Mono 4 printer
- You prefer pre-cut films with rings to save installation time
- You want a five-pack to reduce replacement frequency
Skip if
- You use a printer with a different build volume
- You require the thinnest possible film for maximum detail
- You already have a sufficient supply of compatible films
Verdict: CHINDRAG 197x131mm FEP Film for Mono 2/4 offers a convenient integrated design for Anycubic Mono 2 and Mono 4 owners. It fits users who value easy installation and consistent light transmission over ultra-thin film profiles.
Antinsky 280 x 450 mm nFEP Release Film
Best for: Large resin printers like Phrozen Sonic Mega 8k
- Dimensions
- 450 x 280 mm
- Maximum Temperature
- 260 °C
- Release Film Type
- nFEP, PFA
- Film Thickness
- 0.15 mm
- Printing Technology
- Resin
- Length
- 17.7 inches
View on Amazon: Antinsky 280 x 450 mm nFEP Release Film Affiliate link
This is a large-format release film measuring 450 by 280 millimeters with a thickness of 0.15 millimeters. It uses nFEP and PFA materials to offer up to 95% light transmittance. The film withstands temperatures up to 260 °C. It suits users with large resin printers like the Phrozen Sonic Mega 8k or Anycubic M3 MAX who need a durable, high-transparency surface for accurate prints.
Pros
- High 95% light transmittance for faster curing
- Heat resistance up to 260 °C
- Large 450 x 280 mm size for big builds
- nFEP and PFA material for better durability
Cons
- Single piece count instead of a multi-pack
- 0.15 mm thickness may vary from standard FEP
- Requires cutting for smaller printer beds
Good fit if
- You use a large resin printer like the Phrozen Sonic Mega 8k
- You need high heat resistance for stable printing
- You want a single large sheet to cut as needed
Skip if
- You need a multi-pack for frequent replacements
- You have a small printer under 220 x 310 mm
- You prefer standard FEP material over nFEP
Verdict: Antinsky nFEP PFA Film 280x450mm fits large-format resin printers needing high heat tolerance and transparency. It is a practical solution for users printing big models who can cut the sheet to size.
Specifications side by side
| Spec | UniTak3D 197 x 131mm Steel Ring FEP Film | ELEGOO Saturn 2 and 3 Metal Resin Tank with FEP | KOYOFEI 200x140mm FEP Release Film 6-Pack | ELEGOO Mars 4/5 FEP Release Film 5-Pack | ANYCUBIC 2-Pack Integrated FEP Film | CHINDRAG Mono 2 and 4 Integrated FEP Film | Antinsky 280 x 450 mm nFEP Release Film |
|---|---|---|---|---|---|---|---|
| Primary Material | not stated | Anodized aluminum | not stated | not stated | not stated | not stated | not stated |
| Dimensions | 197 * 131mm | 292.8*172.4*33mm | 140 x 200 x 0.15mm | 206*146mm | not stated | 197x131x0.15mm | 450 x 280 mm |
| Maximum Temperature | 204 ℃ | not stated | not stated | not stated | not stated | 204°C | 260 °C |
| Release Film Type | FEP | FEP | FEP | FEP | FEP | FEP | nFEP, PFA |
| Film Thickness | not stated | not stated | 0.15mm | 0.15mm | not stated | 0.15mm | 0.15 mm |
| Printing Technology | Resin | LCD | Resin | not stated | Resin | Resin | Resin |
| Color | not stated | Black | Clear | Clear | not stated | not stated | clear |
| Weight | not stated | 2.2 pounds | 2.82 ounces | not stated | not stated | not stated | 4.76 ounces |
| Width | not stated | not stated | 5.51 inches | not stated | not stated | not stated | 11 inches |
| Length | not stated | not stated | not stated | not stated | not stated | not stated | 17.7 inches |
| Size | not stated | S-for Saturn 2/3 | 200x140mm | S-5PCS for Mars 4/5/5 Ultra | not stated | for Mono 2/Mono 4 | NFEP 280*450mm |
| Model | not stated | not stated | KYF-3D-030 | not stated | not stated | not stated | nfep-A-250*450-1p |
Frequently asked questions
Can I use the KOYOFEI 200x140mm film on my UniTak3D Mono 2?
No. The KOYOFEI film measures 200x140mm, while your printer requires a 197x131mm size. This mismatch means the film will not fit the build platform correctly. You need a replacement that matches the exact dimensions of your UniTak3D unit to ensure proper resin containment and print quality.
What is the best integrated FEP option for Mono 2 and Mono 4 users?
The CHINDRAG Mono 2 and 4 Integrated FEP Film is a strong choice. It features a convenient integrated design that simplifies installation for Anycubic Mono 2 and Mono 4 owners. This option prioritizes ease of use and consistent light transmission, making maintenance straightforward without dealing with separate steel rings.
Is the ELEGOO Saturn 2 metal tank compatible with my UniTak3D printer?
No. The ELEGOO Saturn 2 and 3 Metal Resin Tank is designed exclusively for Saturn 2 and Saturn 3 printers. It is not compatible with UniTak3D or Anycubic Mono series devices. If you own a Mono 2 or Mono 4, you must select a film or tank made for your specific model.
How does the ANYCUBIC Integrated FEP Film simplify maintenance?
The ANYCUBIC 2-Pack Integrated FEP Film allows you to skip cutting film and removing a steel ring during maintenance. It is designed for Anycubic Mono 2, Mono 4, and Mono 4 Ultra users. This integrated approach provides a practical replacement that saves time and reduces the hassle of routine upkeep.
Are there bulk FEP options for 140x200 mm printers?
Yes. The KOYOFEI 200x140mm FEP Release Film comes in a 6-pack, making it suitable for bulk replacements. It is designed for compatible resin printers with 140x200 mm build areas. This option offers a cost-effective solution for users needing multiple films, though it does not fit the smaller UniTak3D dimensions.
What film should I choose for large resin printers like the Phrozen Sonic Mega 8k?
The Antinsky 280 x 450 mm nFEP Release Film is ideal for large-format printers. It offers high heat tolerance and transparency, fitting devices like the Phrozen Sonic Mega 8k. You can cut the sheet to size, making it a practical solution for printing big models that require durable, high-performance release films.