PB SL-870-1 Red Fluorescent Ink Cartridge 2-Pack - SendPro Mailstation

In this review of the PB SL-870-1 red fluorescent ink cartridge 2-pack, the bottom line is simple: small mailrooms and office users who need a USPS-certified, plug-n-play replacement for the SendPro Mailstation (CSD1) will find strong value here. The reviewer found the cartridges deliver consistent red fluorescent postage impressions comparable to OEM output while offering cost savings and a promised yield similar to factory cartridges. For anyone tired of higher OEM prices but unwilling to compromise compatibility or print reliability, these AMERICAN MAILING SOLUTIONS INC. cartridges deserve consideration.

Key Features

• USPS-certified red fluorescent ink: Ensures printed postage meets postal readability requirements and performs like OEM red ink under inspection.
• SendPro Mailstation compatibility: Formulated specifically for the SendPro Mailstation (CSD1) so installation is plug-n-play without frustrating prompts.
• 880 impressions per cartridge: Each cartridge yields up to 880 impressions, matching OEM output to reduce interruptions for frequent mailers.
• 2-pack convenience: The box contains two sets for multiple replacements, lowering per-impression cost versus single OEM cartridges.
• Quality assurance tested: Manufactured in modern facilities with testing to reduce premature drying and maintain consistent print quality.
• Readable if wet: The ink remains legible when envelopes get damp, maintaining postal compliance in adverse conditions.

Who It's For

This cartridge 2-pack is best for small businesses, nonprofit offices, and in-house mailrooms that use the SendPro Mailstation (CSD1) and want a reliable, lower-cost alternative to OEM postage ink. It suits users who value USPS certification and need predictable impression counts so batching and budgeting are easier.

It is less appropriate for users who require multi-brand compatibility beyond the SendPro Mailstation or who prefer to buy direct from the postage meter manufacturer for bundled service reasons. If you need color varieties besides USPS-approved red fluorescent ink, look elsewhere.

Pros & Cons

Pros

• USPS-approved fluorescent red matches OEM readability and inspection standards.
• Plug-n-play compatibility with SendPro Mailstation avoids setup delays or key prompts.
• Yield parity with OEM at up to 880 impressions per cartridge gives predictable value.
• Sold in a two-set package to lower the per-cartridge cost for frequent users.

Cons

• Designed specifically for SendPro Mailstation (CSD1) so it is not a universal postage ink solution.
• Packaging lists one cartridge per box; customers must note they are receiving two sets rather than larger bulk quantities.

Specifications

Brand	AMERICAN MAILING SOLUTIONS INC.
Model	PB SL-870-1
Color	Red fluorescent
Compatibility	SendPro Mailstation (CSD1) postage meter
Yield	Up to 880 impressions per cartridge
Package contents	1 cartridge per box, 2 sets included
Certification	USPS-approved red postage ink

Our Verdict

The PB SL-870-1 2-pack is a practical, cost-conscious choice for SendPro Mailstation users who want the same USPS-certified performance as OEM red cartridges without the premium price. It provides consistent print quality, predictable yields, and easy plug-n-play installation, making it a smart swap for offices that process regular mail volumes and prioritize reliability and value.

Frequently Asked Questions

Are these cartridges compatible with the SendPro Mailstation (CSD1)?
Yes, they are specifically formulated for the SendPro Mailstation (CSD1) and designed to install without key prompts.

How many impressions does each cartridge provide?
Each cartridge yields up to 880 impressions, matching the typical OEM impression count.

Is the red fluorescent ink USPS certified?
Yes, the PB SL-870-1 uses USPS-approved red fluorescent ink to meet postal readability requirements.