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Custom Reference Standards

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  2. Chromatography
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  7. No Slit

No Slit

No Slit​

Guaranteed Compatibility with Agilent, Varian, Shimadzu, PerkinElmer, and More.

Extra-Long-Life
Multipliers & Filaments

Manufactured
in the USA

Increase Instrument
Uptime

Industry-Leading
Linearity

Used by OEMs in
Premium Instruments

Late Order
Cutoff Time
2026 Variant Price List
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No Slit

[4250-53951F09O] 9mm R.A.M.™ Smooth Cap, Pink, Bonded PTFE/Silicone Lined, 1000/pk
9mm R.A.M.™ Smooth Cap, Pink, Bonded PTFE/Silicone Lined, 1000/pk
Item number 4250-53951F09O
$ 327.00 327.0 USD
[4250-5395109FW] 9mm R.A.M.™ Ribbed Cap, White, Bonded PTFE/Silicone Lined, 1000/pk
9mm R.A.M.™ Ribbed Cap, White, Bonded PTFE/Silicone Lined, 1000/pk
Item number 4250-5395109FW
$ 327.00 327.0 USD
[4250-539509FRB] 9mm R.A.M.™ Ribbed Cap, Royal Blue, PTFE/Silicone Lined, 1000/pk
9mm R.A.M.™ Ribbed Cap, Royal Blue, PTFE/Silicone Lined, 1000/pk
Item number 4250-539509FRB
$ 210.00 210.0 USD
[4250-5395109FO] 9mm R.A.M.™ Ribbed Cap, Orange, Bonded PTFE/Silicone Lined, 1000/pk
9mm R.A.M.™ Ribbed Cap, Orange, Bonded PTFE/Silicone Lined, 1000/pk
Item number 4250-5395109FO
$ 327.00 327.0 USD
[4250-539509FPK] 9mm R.A.M.™ Ribbed Cap, Pink, PTFE/Silicone Lined, 1000/pk
9mm R.A.M.™ Ribbed Cap, Pink, PTFE/Silicone Lined, 1000/pk
Item number 4250-539509FPK
$ 210.00 210.0 USD
[4250-5394M09FN] 9mm R.A.M.™ Magnetic Cap, PTFE/Butyl Rubber Lined, 100/pk
9mm R.A.M.™ Magnetic Cap, PTFE/Butyl Rubber Lined, 100/pk
Item number 4250-5394M09FN
$ 67.00 67.0 USD
[4250-539509F] 9mm R.A.M.™ Ribbed Cap, Black, PTFE/Silicone Lined, 1000/pk
9mm R.A.M.™ Ribbed Cap, Black, PTFE/Silicone Lined, 1000/pk
Item number 4250-539509F
$ 235.00 235.0 USD
[4250-5394F09R] 9mm R.A.M.™ Smooth Cap, Red, PTFE/Butyl Rubber Lined, 1000/pk
9mm R.A.M.™ Smooth Cap, Red, PTFE/Butyl Rubber Lined, 1000/pk
Item number 4250-5394F09R
$ 197.00 197.0 USD
[4250-5394F09RB] 9mm R.A.M.™ Smooth Cap, Royal Blue, PTFE/Butyl Rubber Lined, 1000/pk
9mm R.A.M.™ Smooth Cap, Royal Blue, PTFE/Butyl Rubber Lined, 1000/pk
Item number 4250-5394F09RB
$ 197.00 197.0 USD
[4250-5394F09PK] 9mm R.A.M.™ Smooth Cap, Pink, PTFE/Butyl Rubber Lined, 1000/pk
9mm R.A.M.™ Smooth Cap, Pink, PTFE/Butyl Rubber Lined, 1000/pk
Item number 4250-5394F09PK
$ 197.00 197.0 USD
[4250-5394F09O] 9mm R.A.M.™ Smooth Cap, Orange, PTFE/Butyl Rubber Lined, 1000/pk
9mm R.A.M.™ Smooth Cap, Orange, PTFE/Butyl Rubber Lined, 1000/pk
Item number 4250-5394F09O
$ 197.00 197.0 USD
[4250-5394F09G] 9mm R.A.M.™ Smooth Cap, Green, PTFE/Butyl Rubber Lined, 1000/pk
9mm R.A.M.™ Smooth Cap, Green, PTFE/Butyl Rubber Lined, 1000/pk
Item number 4250-5394F09G
$ 197.00 197.0 USD
[4250-5355009F] 9mm Solid Top R.A.M.™ Ribbed Cap, Black Polypropylene, PTFE/Silicone Lined, 1000/pk
9mm Solid Top R.A.M.™ Ribbed Cap, Black Polypropylene, PTFE/Silicone Lined, 1000/pk
Item number 4250-5355009F
$ 216.00 216.0 USD
[4250-536009] 9mm Solid Top R.A.M.™ Ribbed Cap, Black Polypropylene, PTFE/F217 Lined, 1000/pk
9mm Solid Top R.A.M.™ Ribbed Cap, Black Polypropylene, PTFE/F217 Lined, 1000/pk
Item number 4250-536009
$ 207.00 207.0 USD
[4250-539409FR] 9mm R.A.M.™ Ribbed Cap, Red, PTFE/Butyl Rubber Lined, 1000/pk
9mm R.A.M.™ Ribbed Cap, Red, PTFE/Butyl Rubber Lined, 1000/pk
Item number 4250-539409FR
$ 197.00 197.0 USD
[4250-539509FR] 9mm R.A.M.™ Ribbed Cap, Red, PTFE/Silicone Lined, 1000/pk
9mm R.A.M.™ Ribbed Cap, Red, PTFE/Silicone Lined, 1000/pk
Item number 4250-539509FR
$ 210.00 210.0 USD
[4250-5395109FR] 9mm R.A.M.™ Ribbed Cap, Red, Bonded PTFE/Silicone Lined, 1000/pk
9mm R.A.M.™ Ribbed Cap, Red, Bonded PTFE/Silicone Lined, 1000/pk
Item number 4250-5395109FR
$ 327.00 327.0 USD
[4250-539109FRB] 9mm R.A.M.™ Ribbed Cap, Royal Blue, PTFE Lined, 1000/pk
9mm R.A.M.™ Ribbed Cap, Royal Blue, PTFE Lined, 1000/pk
Item number 4250-539109FRB
$ 141.00 141.0 USD
[4250-5391F09RB] 9mm R.A.M.™ Smooth Cap, Royal Blue, PTFE Lined, 1000/pk
9mm R.A.M.™ Smooth Cap, Royal Blue, PTFE Lined, 1000/pk
Item number 4250-5391F09RB
$ 141.00 141.0 USD
[4250-539609FPK] 9mm R.A.M.™ Ribbed Cap, Pink, PTFE/Silicone/PTFE Lined, 1000/pk
9mm R.A.M.™ Ribbed Cap, Pink, PTFE/Silicone/PTFE Lined, 1000/pk
Item number 4250-539609FPK
$ 333.00 333.0 USD