Pumps – All pumps, with the exception of the 38-U ½ accommodate 3/16”, ¼” and 5/16” tube.
The number in the prefix of the part number indicates the thread size of the sample bottle. Any pump that begins with 38 will fit a 38-400 thread bottle. Easy Vac supplies bottles for all 38 mm pumps.

2 digit number – Thread size of bottle in mm
X – Yellow Nylon
U – Clear acrylic
V – Vacuum release valve

Repair kits are offered for all pumps and include Buna O-rings and flapper valve and are listed with each corresponding pump. Some sizes are also available in Viton and are listed below.

Easy Vac has the ability to customize pumps in many ways. Please inquire about special sizes or materials. Minumum purchase required.

X Models - Yellow Nylon Head

PUM 38-X

  • 38 mm (most commonly used)
  • Rebuild Kit: 3802 & 3802 Viton
  • Yellow nylon also available in the following sizes, 21mm, 28mm, 32mm, 43mm

XV Models - Yellow Nylon Head, Vacuum Release Valve

PUM 38-XV

  • 38 mm
  • Rebuild Kit: 3802 & 3802 Viton
  • Yellow nylon also available in the following sizes, 21mm, 28mm, 32mm, 43mm

U Models - Clear Acrylic Head

PUM 38-U

  • 38 mm
  • Rebuild Kit: 3802
  • ** Any model can be modified with or without a vacuum release valve through special order

U Models - Clear Acrylic Head

PUM 38-U1/2

  • 38 mm, accomodates 1/2″ tube
  • Repair Kit: 3802 1/2
  • ** Any model can be modified with or without a vacuum release valve through special order

U Models - Clear Acrylic Head

PUM 45-U, 48-U

  • 45 mm
  • Repair Kit: 4502
  • 48 mm
  • Repair Kit: 4502
  • ** Any model can be modified with or without a vacuum release valve through special order
  • Also available in the following sizes 53mm & 58mm

M and FM Models - Acrylic Head, Stands, Vacuum Release Valves

PUM 38-97M

  • 38 mm, Rigid Stand
  • Repair Kit: 3801 & 3801 Viton

M and FM Models - Acrylic Head, Stands, Vacuum Release Valves

PUM 38-97FM

  • 38 mm, Folding Stand
  • Repair Kit: 3801 & 3801 Viton