CAINK 37A / CF237A Black Remanufactured Toner, 2-Pack

CF237A: CAINK 37A toner cartridges are a two-pack of black remanufactured replacements for compatible HP LaserJet Enterprise printers. The listing claims up to 11,000 pages per cartridge at 5% coverage, but gives a conflicting separate yield figure that buyers should resolve before purchase.

At a glance

The listed compatible models include LaserJet Enterprise M607, M608 and M609 variants, along with M631, M632 and M633 MFP models.
A built-in chip is claimed, which the listing says is intended to support printer compatibility.
The listing describes the cartridges as remanufactured replacements for HP 37A/CF237A and also references 37X/CF237X.

Price

$76.18Save 31%

Reference price: ~~$109.99~~

Price checked: Nov 14, 2026

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Pros and cons

Pros

Two black cartridges are listed, useful for maintaining a spare for compatible high-volume printers.
The compatible printer list names a range of Enterprise printer and MFP variants.

Cons

Remanufactured cartridges may not suit buyers who require new original-manufacturer supplies.

Technical specifications

16 specifications

Identity
Brand	caink
Model	37A toner cartridge for HP printer
Model number	37A/CF237A
Cartridge type	Remanufactured
Color	Black

Compatibility and features
Compatible printer models	LaserJet Enterprise Flow MFP M631h, M632z, M633z; LaserJet Enterprise M607dn, M607n, M608dn, M608n, M608x, M609dh, M609dn, M609x; LaserJet Enterprise MFP M631z, M632fht, M632h, M633fh Printer
Compatibility option	Compatible
Chip	Built-In Chip

Yield and package
Page yield	22000
Package size	2-Pack
Number of packs	2

Printer and media details
Printer type	Laser
Printer output type	single color
Additional printer functions	Print Only
Print media	Paper (plain)

Support
Warranty description	1 Year

What to know before buying

Listing details to confirm

The yield information is inconsistent: the details field states 22000, while the feature text says up to 11,000 pages per cartridge at 5% coverage and 22,000 total for two. Confirm the expected yield and that your exact printer model is supported before buying.

What’s in the box

Included

Toner cartridges (2)

Who is it for?

A good fit for

Owners of listed HP LaserJet Enterprise M607, M608, M609, M631, M632 or M633 series printers seeking a two-cartridge black replacement set.
Buyers comfortable considering remanufactured toner for routine monochrome printing.

Less suited to

Buyers who need original HP cartridges or a clearly confirmed page-yield figure.

CAINK 37A / CF237A Black Remanufactured Toner, 2-Pack · photo 2 — Additional product photo 2

Customer reviews on Amazon

5 / 5 · 2 ratings

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There are only a small number of aggregate ratings, all in the five-star category. That is limited evidence and does not establish specific strengths, print quality or reliability, so buyers should weigh the stated remanufactured type, printer compatibility and conflicting yield claims directly.

Frequently asked questions

Which printers does this cartridge list as compatible?

The listing names LaserJet Enterprise M607, M608 and M609 variants, plus M631, M632 and M633 MFP variants. Check the exact model designation against the listing before ordering.

How many pages should I expect from the two-pack?

The listing gives conflicting yield details. One field says 22000, while its feature text says up to 11,000 pages per cartridge at 5% coverage and 22,000 total for two. Treat those as manufacturer claims and confirm the applicable yield.

Are these original HP cartridges?

No. The product details describe them as remanufactured, compatible CAINK cartridges, rather than original HP supplies.

What comes in the package?

The explicit contents list says two toner cartridges.