17 Series

Interchangeable with rectus 17 and Schrader nw5

19 Series

Interchangeable with rectus 19 & pci 60 standard series

21 Series

Interchangeable with rectus 21, rectus 90 and

Camozzi

23 Series

Interchangeable with rectus 23, cejn 310,

us mil spec 4109 1/4" & Hansen 3000

25 Series

Interchangeable with rectus 25, rectus 26,

cejn 320, parker jwl520, jwl530