Replacement Cartridge Holders

Replacement Cartridge Holders for Pen-Depot branded pens. Accidents happen, we have you covered.

Choose your Pen Model in the drop down

****THESE ITEMS ARE NOT RETURNABLE****

Compatible with Pen-Depot branded pens only. Pen threads vary by manufacturer — we cannot confirm fit or function on pens purchased elsewhere.

WARNING — Replacement part only. This cartridge holder is sold to replace a broken or damaged holder, not as a cartridge-swap accessory. Swapping cartridges between doses requires re-priming the pen each time, wasting peptide, risking mis dosing, and causing excessive wear that VOIDS the pen warranty. Use one pen per compound per cycle for safe, accurate dosing.