Modifying pen bodies with refills from different manufacturers can allow one to create the perfect pen. If you have discovered a pen and refill modification that you love, feel free to e-mail us at JetDa@JetPens.com to share the knowledge!

Refill	Compatible Pens	Modification Notes
Pilot Hi-Tec-C Slims Gel Ink Multi Pen Refill	Platinum Double R3 Action Multi Pen Platinum Mini Double 3 Action Multi Pen Zebra Penpod Mini Keychain Pens	Refer to PenPedia Article: Pen Mod - Hi-Tec-C Platinum Double R3 Action Multi Pen PenPediaArticle: Pen Mod - Hi-Tec-C Platinum Mini Double 3 Action Multi PenPedia Article: Pen Mod - Hi-Tec-C Zebra Pen Pod
Pilot Hi-Tec-C Coleto Multi Pen Ink Cartridges	Zebra Clip-On Multi Pen Series	Refill requires clipping, refer to PenPedia Article: Pen Mod - Hi-Tec-C Clip-On Multi Pen
Uni-ball SXR-80-XX series Jetstream Ballpoint Multi Pen Refill	Uni-ball Pure Malt Wood Grip 2 Color Ballpoint Multi Pens
Uni-ball UMR-83 (Signo RT) Gel Ink Pen Refills	Uni-ball Signo Premier 207 Retractable Gel Ink Pens
Foray Gel Refills from Office Depot	Uni-ball Jetstream Ballpoint Pen - 0.5 mm and 0.7 mm	Unconfirmed
Pentel Sliccies Gel Ink Multi Pen Ink Cartridges, Uni-ball Style Fit Multi Pen Refills	Pilot Dr. Grip 4+1 4 Color 0.7 mm Ballpoint Multi Pen + 0.5 mm Pencil Pilot 4+1 Light 4 Color 0.7 mm Ballpoint Multi Pen + 0.5 mm Pencil