Skip to Content

Custom Inorganic Standards

  1. Products
  2. Chromatography
  3. Gas Chromatography
  4. Vials and Closures
  5. Closures

Closures

Closures​

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

Closures

[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
[4250-531009FRB] 9mm R.A.M.™ Royal Blue, Ribbed Polypropylene Open Hole Cap, 1000/pk
9mm R.A.M.™ Royal Blue, Ribbed Polypropylene Open Hole Cap, 1000/pk
Item number 4250-531009FRB
$ 54.00 54.0 USD
[4250-5310F09RB] 9mm R.A.M.™ Royal Blue, Smooth Polypropylene Open Hole Cap, 1000/pk
9mm R.A.M.™ Royal Blue, Smooth Polypropylene Open Hole Cap, 1000/pk
Item number 4250-5310F09RB
$ 54.00 54.0 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
[4250-53917F09] 9mm R.A.M.™ Smooth Cap, Black, PTFE Lined with Slit, 1000/pk
9mm R.A.M.™ Smooth Cap, Black, PTFE Lined with Slit, 1000/pk
Item number 4250-53917F09
$ 184.00 184.0 USD
[4250-5397F09] 9mm R.A.M.™ Smooth Cap, Black, PTFE/Silicone with Slit Lined, 1000/pk
9mm R.A.M.™ Smooth Cap, Black, PTFE/Silicone with Slit Lined, 1000/pk
Item number 4250-5397F09
$ 306.00 306.0 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
[4250-5397F09G] 9mm R.A.M.™ Smooth Cap, Green, PTFE/Silicone with Slit Lined, 1000/pk
9mm R.A.M.™ Smooth Cap, Green, PTFE/Silicone with Slit Lined, 1000/pk
Item number 4250-5397F09G
$ 306.00 306.0 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
[4250-5397F09O] 9mm R.A.M.™ Smooth Cap, Orange, PTFE/Silicone with Slit Lined, 1000/pk
9mm R.A.M.™ Smooth Cap, Orange, PTFE/Silicone with Slit Lined, 1000/pk
Item number 4250-5397F09O
$ 306.00 306.0 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
[4250-5397F09R] 9mm R.A.M.™ Smooth Cap, Red, PTFE/Silicone with Slit Lined, 1000/pk
9mm R.A.M.™ Smooth Cap, Red, PTFE/Silicone with Slit Lined, 1000/pk
Item number 4250-5397F09R
$ 306.00 306.0 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
[4250-5395ULF09RB] 9mm R.A.M.™ Smooth Cap, Royal Blue, Clear PTFE/Blue Silicone Ultra Low Bleed Septa for Mass Spec, 1000/pk
9mm R.A.M.™ Smooth Cap, Royal Blue, Clear PTFE/Blue Silicone Ultra Low Bleed Septa for Mass Spec, 1000/pk
Item number 4250-5395ULF09RB
$ 328.00 328.0 USD