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Custom Inorganic Standards

  1. Products
  2. Chromatography
  3. Gas Chromatography
  4. Vials and Closures
  5. Closures
  6. Pre-assembled Caps (with Septa)
  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
Sort By: Featured

No Slit

[4250-539609FR] 9mm R.A.M.™ Ribbed Cap, Red, PTFE/Silicone/PTFE Lined, 1000/pk
9mm R.A.M.™ Ribbed Cap, Red, PTFE/Silicone/PTFE Lined, 1000/pk
Item number 4250-539609FR
$ 333.00 333.0 USD
[4250-5395109FRB] 9mm R.A.M.™ Ribbed Cap, Royal Blue, Bonded PTFE/Silicone Lined, 1000/pk
9mm R.A.M.™ Ribbed Cap, Royal Blue, Bonded PTFE/Silicone Lined, 1000/pk
Item number 4250-5395109FRB
$ 327.00 327.0 USD
[4250-539409FRB] 9mm R.A.M.™ Ribbed Cap, Royal Blue, PTFE/Butyl Rubber Lined, 1000/pk
9mm R.A.M.™ Ribbed Cap, Royal Blue, PTFE/Butyl Rubber Lined, 1000/pk
Item number 4250-539409FRB
$ 197.00 197.0 USD
[4250-539509FW] 9mm R.A.M.™ Ribbed Cap, White, PTFE/Silicone Lined, 1000/pk
9mm R.A.M.™ Ribbed Cap, White, PTFE/Silicone Lined, 1000/pk
Item number 4250-539509FW
$ 210.00 210.0 USD
[4250-5395109FY] 9mm R.A.M.™ Ribbed Cap, Yellow, Bonded PTFE/Silicone Lined, 1000/pk
9mm R.A.M.™ Ribbed Cap, Yellow, Bonded PTFE/Silicone Lined, 1000/pk
Item number 4250-5395109FY
$ 327.00 327.0 USD
[4250-539409FY] 9mm R.A.M.™ Ribbed Cap, Yellow, PTFE/Butyl Rubber Lined, 1000/pk
9mm R.A.M.™ Ribbed Cap, Yellow, PTFE/Butyl Rubber Lined, 1000/pk
Item number 4250-539409FY
$ 197.00 197.0 USD
[4250-5399F09] 9mm R.A.M.™ Smooth Cap, Black, Black Viton® Lined, 1000/pk
9mm R.A.M.™ Smooth Cap, Black, Black Viton® Lined, 1000/pk
Item number 4250-5399F09
$ 585.00 585.0 USD
[4250-53951F09] 9mm R.A.M.™ Smooth Cap, Black, Bonded PTFE/Silicone Lined, 1000/pk
9mm R.A.M.™ Smooth Cap, Black, Bonded PTFE/Silicone Lined, 1000/pk
Item number 4250-53951F09
$ 327.00 327.0 USD
[4250-53951F09G] 9mm R.A.M.™ Smooth Cap, Green, Bonded PTFE/Silicone Lined, 1000/pk
9mm R.A.M.™ Smooth Cap, Green, Bonded PTFE/Silicone Lined, 1000/pk
Item number 4250-53951F09G
$ 327.00 327.0 USD
[4250-53951F09N] 9mm R.A.M.™ Smooth Cap, Natural, Bonded PTFE/Silicone Lined, 1000/pk
9mm R.A.M.™ Smooth Cap, Natural, Bonded PTFE/Silicone Lined, 1000/pk
Item number 4250-53951F09N
$ 327.00 327.0 USD
[4250-5394F09N] 9mm R.A.M.™ Smooth Cap, Natural, PTFE/Butyl Rubber Lined, 1000/pk
9mm R.A.M.™ Smooth Cap, Natural, PTFE/Butyl Rubber Lined, 1000/pk
Item number 4250-5394F09N
$ 197.00 197.0 USD
[4250-5396F09N] 9mm R.A.M.™ Smooth Cap, Natural, PTFE/Silicone/PTFE Lined, 1000/pk
9mm R.A.M.™ Smooth Cap, Natural, PTFE/Silicone/PTFE Lined, 1000/pk
Item number 4250-5396F09N
$ 333.00 333.0 USD
[4250-53951F09PK] 9mm R.A.M.™ Smooth Cap, Orange, Bonded PTFE/Silicone Lined, 1000/pk
9mm R.A.M.™ Smooth Cap, Orange, Bonded PTFE/Silicone Lined, 1000/pk
Item number 4250-53951F09PK
$ 327.00 327.0 USD
[4250-5396F09O] 9mm R.A.M.™ Smooth Cap, Orange, PTFE/Silicone/PTFE Lined, 1000/pk
9mm R.A.M.™ Smooth Cap, Orange, PTFE/Silicone/PTFE Lined, 1000/pk
Item number 4250-5396F09O
$ 333.00 333.0 USD
[4250-53951F09R] 9mm R.A.M.™ Smooth Cap, Red, Bonded PTFE/Silicone Lined, 1000/pk
9mm R.A.M.™ Smooth Cap, Red, Bonded PTFE/Silicone Lined, 1000/pk
Item number 4250-53951F09R
$ 327.00 327.0 USD
[4250-5395F09R] 9mm R.A.M.™ Smooth Cap, Red, PTFE/Silicone Lined, 1000/pk
9mm R.A.M.™ Smooth Cap, Red, PTFE/Silicone Lined, 1000/pk
Item number 4250-5395F09R
$ 210.00 210.0 USD
[4250-5396F09R] 9mm R.A.M.™ Smooth Cap, Red, PTFE/Silicone/PTFE Lined, 1000/pk
9mm R.A.M.™ Smooth Cap, Red, PTFE/Silicone/PTFE Lined, 1000/pk
Item number 4250-5396F09R
$ 333.00 333.0 USD
[4250-5396F09RB] 9mm R.A.M.™ Smooth Cap, Royal Blue, PTFE/Silicone/PTFE Lined, 1000/pk
9mm R.A.M.™ Smooth Cap, Royal Blue, PTFE/Silicone/PTFE Lined, 1000/pk
$ 333.00 333.0 USD
[4250-5394F09Y] 9mm R.A.M.™ Smooth Cap, Yellow, PTFE/Butyl Rubber Lined, 1000/pk
9mm R.A.M.™ Smooth Cap, Yellow, PTFE/Butyl Rubber Lined, 1000/pk
Item number 4250-5394F09Y
$ 197.00 197.0 USD
[4250-5396F09Y] 9mm R.A.M.™ Smooth Cap, Yellow, PTFE/Silicone/PTFE Lined, 1000/pk
9mm R.A.M.™ Smooth Cap, Yellow, PTFE/Silicone/PTFE Lined, 1000/pk
Item number 4250-5396F09Y
$ 333.00 333.0 USD