InkNI Toner Cartridge 2-Pack

Where it shines

When a home office or small workspace goes through black-and-white documents, replacing toner less often can make routine printing easier. The InkNI CRG137 two-pack is a compatible replacement for Canon 137 black toner, and each cartridge is rated for up to 2,400 pages. That yield is based on Letter or A4 pages at 5% coverage, so pages with heavier graphics or large areas of black may use toner faster. If you print invoices, school assignments, or everyday forms, having a second cartridge on hand can help avoid a last-minute supply run.

It’s a great fit if your printer is one of the listed models and you want a compatible cartridge rather than a Canon-branded replacement. The listing names the ImageClass D570, MF232w, MF247dw, MF249dw, MF246dn, MF244dw, MF236n, MF233n, MF216n, MF212w, MF211, MF229dw, MF227dw, and LBP151dw. Check your printer’s exact model before ordering, a similar model name alone does not establish compatibility.

Key points

The cartridges are black and include a chip, according to the product details. That chip is intended to support printer recognition, but the listing does not provide a guarantee for every printer or situation. The stated yield is useful for comparing supplies, not a promise that every user will get the same number of pages. On the spec sheet, the 5% coverage assumption is the important qualifier: text-only pages may use less toner than dense forms, images, or graphics.

If you prioritize having a spare and a stated page yield, this two-pack is a straightforward replacement format. If you prefer a single cartridge or want to stick with the printer manufacturer’s own supplies, a compatible multipack may not match your buying preference. One practical scenario: keep the second cartridge sealed in a desk drawer, then swap it in when a stack of class handouts or work documents starts printing faintly. No print-quality test results are provided here, so claims about output matching an original cartridge should not be treated as independently verified.

Best use cases

This pack makes the most sense for owners of the listed Canon laser printer models who print black text regularly and are comfortable choosing a compatible toner. It may also suit a shared home printer where one person can keep the spare ready for the next change. The listed yield offers a reference point, but actual cartridge life depends on what you print and how much of each page is covered in toner.

Better avoided if your printer is not among the models named above, or if you need a confirmed page count for graphics-heavy work. The product information focuses on compatibility and yield, it does not give detailed installation instructions or specify maintenance steps. For a buyer who needs those details before choosing a replacement, the listing leaves some practical questions unanswered.

Final verdict

Choose the InkNI CRG137 two-pack if you have a listed printer, want two compatible black toner cartridges, and find the stated yield useful for planning routine document printing. The strongest reason to consider it is the spare cartridge combined with a clearly qualified yield figure. Skip it if exact output expectations matter more than a rated estimate, or if you want a manufacturer-branded cartridge instead of a compatible alternative.