C4 The Cartridge and Convertor Compatibility Chart

Brand Fountain Pen Hosp. Small Catalog Fahrney's Converter- Fahrneys Colorado Pen Co Converter- CPC Small Cat. Convert
Ancora NL Standard [6/pk 2.95] NL NL NL NL NL
Aurora Aurora [4.30] Aurora [4.30] #30111 [5/pk 3.10] #56815 [5.50] A20-00879 [5/pk 2.75] 26-08188 [5.00] NL
Burby's NL Standard [6/pk 2.95] NL NL NL NL NL
Bossert & Erhard Standard [6/pk 2.95] Standard [6/pk 2.95] NL NL A20-11355 [8/pk 4.00] 26-11357 [3.50] NL
Caran d'Ache Standard [6/pk 2.95] C d'Ache [5/pk 2.00] #3C [10/pk 6.00] #251300 {4.75] NL NL NL
  NL NL #TP6 [6/pk 2.35] NL NL NL NL
Cartier NL Vendome [10/pk 13.00] 25110 [10/pk  13.00] #800021 [12.00] A20-11355 [8/pk 4.00] NL NL
  NL Others [10/pk 10.75] #54000 [10/pk 3.75 ] Pasha #/00019 [55.00] NL NL NL
Colibri NL Standard [6/pk 2.95] #3C [10/pk 6.00] NL A20-13106 [6/pk 2.95] NL NL
Cross Cross [6/pk 3.00] Cross [6/pk 3.00] #9892C [6/pk 3.00] #8930 [4.00] A20-14409 [6/pk 3.00] 26-14412 [4.00] Converter [4.00]
Dani Trio Standard [6/pk 2.95] Standard [6/pk 2.95] NL NL NL NL NL
Delta Standard [6/pk 2.95] Standard [6/pk 2.95] #30111 [5/pk 3.10] #56185 [5.50] A20-11355 26-11357 [3.50] NL
Dunhill NL NL NL NL A20-14068 [12/pk 4.95] 26-14070 [32.50] NL
Dupont DUPONT [3.50] Orpheo & Fidelio  [3.50] Orpheo 40110 [6/pk 3.50[ O & F #251300 [4.75] A20-08627 [6/pk 3.50] 26-14055 [13.00] NL
  NL Others [3.50] Fidelio #TP6 [6/pk 2.35] NL NL NL NL
  NL NK MtP, II, Plu 40100 [6/pk 3.50] NL NL NL NL
Faber-Castell Standard [6/pk 2.95] Standard [6/pk 2.95] #TP6 [6/pk 2.35] NL A20-09152 [6/pk 2.95] NL NL
Inoxcrom NL NL NL NL A20-113355 [8/pk 4.00] 26-11357 [3.50] NL
Hysek NL NL` NL NL A20-09469 NJ NL
Lepine Standard [6/pk 2.95] NL NL NL NL NL NL
Lamy Lamy [2.45] Lamy [2.45] #T10C [5/pk 2.45] Sfri  *Z20 or CP1 [5.00] A20-00704  [5/pk 2.45] Sfri 26-00757 [4.50] Sfri Z24 [4.50]
  NL NL NL Persn #Z23  [6.00] NL Acc't  26-00579 [4.50} Acc't Z25  [4.50]
  NL NL NL NL NL NL Oth Z22  [5.00]
Marlen Standard [6/pk 2.95] Standard [6/pk 2.95] NL NL NL NL NL
M.Perchin Standard [6/pk 2.95] Standard [6/pk 2.95] NL NL NL NL NL
Mont Blanc MB [4.50] MB [6.00] #4C [6/pk 5.00] #03CN [9.25] A20-095080 [6/pk 6.00] 26-07744 [9.25] Converter [9.25]
  NL NL #TP6 [6/pk  2.35] NL NL NL NL
Montegrappa Standard [6/pk 2.29] NL #TP6 [6/pk 2.35] #AC3  [13.50] NL NL NL
MT.Verde NL Standard [6/pk 2.95] NL NL NL NL NL
Pilot Namiki [2.10] Namiki   [12/pk 4/00] #1C-100 [12/pk 4.00] PICOVN {9.00] A20-18981 [12/4.00] 26-03418  [3.50] NL
  NL Namiki [6/pl 2.10] NL NL NL NL NL
Omas OMAS [4.95] NL NL NL NL NL NL
Parker Ouink [2.95] Parker [3.10] #30111 [5/pk 3.10] Duo  #56185 [5.50] A20-08287 26-08188 Twist  [5.50]
  Penman [5.75] NL NL Slide  #56183  [5.50] NL NL Slide {2.95]
Pelikan Standard [6/pk 2.95] Standard [6/pk 2.95] #TP6  [6/pk 2.35] NL Long- A20-14044 [7.95] NL NL
Retro 51 Standard [6/pk 2.95] Standard [6/pk 2.95] #TP6 [6/2.35] #56010 [5.00] NL NL NL
Rotring Standard [6/pk 2.95] Standard [6/pk 2.95] #TP6 [6/pk 2.35] #251300 [4.75] A20-18075 [6/pk 3.00] 26-00083 [4.75] Rotring [4.75]
Sheaffer Sheaffer [1.95] Sheaffer [1.95] #96300 [5/pk 1.95] #86700 [5.75] A20-15490 [5/pk 1.95] 26-01407 [4.00] NL
Stipula Standard [6/pk 2.95] Standard [6/pk 2.95] #TP6 [6/pk 2.35] NL NL NL NL
Tombow Standard [6/pk 2.95] Standard [6/pk 2.95] #TP6 [6/pk 2.35] NL NL NL NL
Visconti Standard [6/pk 2.95] Standard  [6/pk 2.95] NL NL NL NL ink pellets 7.50
WLDMNN NL Standard [6/pk 2.95] NL NL NL NL NL
Waterford Standard [6/pk 2.95] Standard [6/pk 2.95] NL NL A20-07609 [6/pk 4.00] 26-11361 [5.00] NL
Waterman Waterman [3.95] Waterman [4.00] #052027C [8/pk 4.00] #50610   [5.00] A20-11355 [8/pk 4.00] 26-11351 [5.00] Standard [2.95]
  NL NL Lady #052126C [6/pk 1.70] #89508 [10.00] NL NL NL
Yard-O-Led NL Standard [6/pk 2.95] #TC6 [6/pk 2.35] NL NL NL NL
NL NL #3C [10/pk 6.00] NL NL NL NL