ELEGOO Resin Tank for Mars 3 Pro - Metal Vat with Pre-Installed PFA

In this review of the ELEGOO resin tank for the MARS 3 and MARS 3 Pro, the bottom line is simple: this is a practical spare metal vat for users who frequently swap resins or want a durable replacement that ships ready to print. The standout reason to buy is the pre-installed PFA release liner and solid aluminum alloy construction, which together eliminate an initial setup step and promise corrosion resistance. The review covers fit, build, and everyday use rather than marketing claims, based on customer feedback and the tank's stated features.

Key Features

• Pre-installed PFA liner: Saves time by arriving ready to use so users can change resin colors faster without installing a release film.
• Aluminum alloy body: Provides chemical corrosion resistance and structural rigidity so the vat is less likely to deform under normal use.
• Secured with screws: The metal resin vat includes screws to fix it firmly in place, preventing movement during prints for consistent results.
• Protective feet: Feet on the bottom keep the PFA liner from contacting your workbench, reducing the chance of damage or contamination.
• Extra lid included: A spare lid helps keep dust, UV light, and direct sunlight away from stored resin between jobs.
• Easy assembly: The vat uses an Allen wrench for installation, allowing quick replacement even for hobbyists with modest tool skills.

Who It's For

This resin vat is best for owners of the ELEGOO MARS 3 and MARS 3 Pro who want a ready-to-use spare for faster color changes or a more durable metal option than plastic vats. Enthusiast makers and small workshop users who handle multiple resins will appreciate the pre-installed PFA liner and the convenience of a second, quickly swappable vat.

Those who need the absolute longest-lasting, maintenance-free solution or who have experienced leakage with replacement vats should be cautious and inspect the unit on arrival, as some customers reported mixed build quality and occasional leakage. If you need an exact OEM lifetime warranty, confirm support options before purchasing.

Pros & Cons

Pros

• Arrives with the PFA release liner installed for immediate use and faster resin swaps.
• Aluminum construction offers better chemical resistance and stiffness than typical plastic vats.
• Includes screws and feet to secure the vat and protect the liner, improving handling and placement.
• Extra lid and simple Allen-wrench assembly make storage and replacement straightforward.

Cons

• Customer reports are mixed on long-term durability, with isolated instances of cracking over months of use.
• Some users have experienced leakage, so expect to inspect the seal and fasteners on delivery.

Specifications

Compatible printers	MARS 3 and MARS 3 Pro
PFA liner	Pre-installed
Body material	Aluminum alloy
Mounting	Screws provided, fixed metal vat
Extras	Spare lid and feet on bottom
Tool required	Allen wrench for assembly

Our Verdict

The ELEGOO metal resin tank with pre-installed PFA liner is a sensible spare or replacement for MARS 3 and MARS 3 Pro users who value quick resin swaps and a stiffer, corrosion-resistant vat. It offers clear practical benefits for hobbyists and small shops, though buyers should check the unit upon arrival because a minority of customers noted leakage or durability issues.

Frequently Asked Questions

Is the liner ready to use out of the box?
Yes, the PFA release liner is pre-installed so the vat is ready for printing without additional setup.

Will this fit my MARS 3 Pro?
Yes, the vat is designed specifically for the MARS 3 and MARS 3 Pro models and is intended to fit and mount using the supplied screws.

Does it include a lid and tools?
An extra lid is included and the vat is assembled with an Allen wrench, which is used to secure the screws.