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Explore the ModBlock Digestion System

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  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
Public Pricelist
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Closures

9mm R.A.M.™ Ribbed Cap, Black, PTFE Lined, 1000/pk
Item number 4250-539109F
$ 134.00 134.0 USD
9mm R.A.M.™ Ribbed Cap, Black, PTFE/Butyl Rubber Lined, 1000/pk
Item number 4250-539409F
$ 187.00 187.0 USD
9mm R.A.M.™ Ribbed Cap, Black, PTFE/Silicone with Slit Lined, 1000/pk
Item number 4250-539709F
$ 292.00 292.0 USD
9mm R.A.M.™ Ribbed Cap, Green, PTFE/Butyl Rubber Lined, 1000/pk
Item number 4250-539409FG
$ 187.00 187.0 USD
9mm R.A.M.™ Ribbed Cap, Green, PTFE/Silicone/PTFE Lined, 1000/pk
Item number 4250-539609FG
$ 317.00 317.0 USD
9mm R.A.M.™ Ribbed Cap, Natural, Bonded PTFE/Silicone Lined, 1000/pk
Item number 4250-5395109FN
$ 312.00 312.0 USD
9mm R.A.M.™ Ribbed Cap, Natural, PTFE/Silicone Lined, 1000/pk
Item number 4250-539509FN
$ 200.00 200.0 USD
9mm R.A.M.™ Ribbed Cap, Orange, PTFE/Butyl Rubber Lined, 1000/pk
Item number 4250-539409FO
$ 187.00 187.0 USD
9mm R.A.M.™ Ribbed Cap, Orange, PTFE/Silicone Lined, 1000/pk
Item number 4250-539509FO
$ 200.00 200.0 USD
9mm R.A.M.™ Ribbed Cap, Orange, PTFE/Silicone with Slit Lined, 1000/pk
Item number 4250-539709FO
$ 292.00 292.0 USD
9mm R.A.M.™ Ribbed Cap, Pink, PTFE/Butyl Rubber Lined, 1000/pk
Item number 4250-539409FPK
$ 187.00 187.0 USD
9mm R.A.M.™ Ribbed Cap, Red, Bonded PTFE/Silicone with Slit Lined, 1000/pk
Item number 4250-5397109FR
$ 352.00 352.0 USD
9mm R.A.M.™ Ribbed Cap, Red, PTFE/Silicone/PTFE Lined, 1000/pk
Item number 4250-539609FR
$ 317.00 317.0 USD
9mm R.A.M.™ Ribbed Cap, Royal Blue, Bonded Clear PTFE/Blue Silicone Ultra Low Bleed Septa - Mass Spec, 1000/pk
Item number 4250-5395U109FRB
$ 352.00 352.0 USD
9mm R.A.M.™ Ribbed Cap, Royal Blue, Bonded PTFE/Silicone Lined, 1000/pk
Item number 4250-5395109FRB
$ 312.00 312.0 USD
9mm R.A.M.™ Ribbed Cap, Royal Blue, Clear PTFE/Blue Silicone Ultra Low Bleed Septa for Mass Spec, 1000/pk
Item number 4250-5395UL09FRB
$ 313.00 313.0 USD
9mm R.A.M.™ Ribbed Cap, Royal Blue, PTFE Lined with Slit, 1000/pk
Item number 4250-5391709FRB
$ 176.00 176.0 USD
9mm R.A.M.™ Ribbed Cap, Royal Blue, PTFE/Butyl Rubber Lined, 1000/pk
Item number 4250-539409FRB
$ 187.00 187.0 USD
9mm R.A.M.™ Ribbed Cap, White, PTFE/Silicone Lined, 1000/pk
Item number 4250-539509FW
$ 200.00 200.0 USD
9mm R.A.M.™ Ribbed Cap, Yellow, Bonded PTFE/Silicone Lined, 1000/pk
Item number 4250-5395109FY
$ 312.00 312.0 USD