Valco Filters for GC - Replacement Frits

replacement frits

How do I know for sure that I need a frit and not a screen?

If you know the filter product number, here is the critical information: all filters with replaceable frits have a product number which ends with an F, for "frit". In most cases, there is an identical product number without the F for a nearly identical filter with a replaceable screen.

If you know the product number and determine that it does end in F, find the product number in the table below to see what diameter frit is required, then scroll down the page to see the available options.

If you know the product number and it doesn't end in F, you need a screen. Go to this page >.

If you don't know the product number, read this >.

Visual identification of frits and screens

If you cannot use the product number to determine if you need a frit or a screen, you must take apart the filter and examine the filter element itself to determine the diameter and whether it is a frit or a screen. The diameter is easily determined by measurement with any simple ruler on hand.

Measuring the thickness requires calipers, but here is a useful guideline: the thickest screen is 0.125 mm. For comparison, a typical double-edged razor blade is .1mm - .12mm. In contrast, the thinnest 1/16" frit is 0.75 mm thick; two of them stacked are roughly the thickness of a dime. Hope that narrows it down a bit! Hide >

Filters organized by frit diameter

Frit diameter Filter product number
1/16" ZUFR.5F
ZBUFR.5F
ZBUFR1.5F
ZBRUFR1.5F
1/8" ZUFR1CF
ZBUFR1CF
ZUFR1F
ZBUFR1F
ZRUFR21F
ZBRUFR21F
1/4" ZUFR2F
ZBUFR2F
ZRUFR41F
ZBRUFR41F
ZRUFR42F
ZBRUFR42F

Replacement frits

All removable frit filters were originally supplied with a 2µ stainless frit, but other materials and porosities are available. Replacement frits are available in titanium, stainless, and Hastelloy C, and sold in packages of 10.

Other sizes may be available or special-ordered in OEM quantities.

Note: If a filter was ordered with a removable frit, the frit cannot be replaced with a screen.

Diameter Pore size Thickness Material Product No.
1/16"
(pkg. of 10)
0.5µ 0.75 mm Stainless .5FR1-10
Hastelloy C .5FR1HC-10
0.75 mm Stainless 2FR1-10
Hastelloy C 2FR1HC-10
Titanium 2FR1TI-10
10µ 0.75 mm Stainless 10FR1-10
1/8"
(pkg. of 10)
0.5µ 1.00 mm Stainless .5FR2-10
1.00 mm Stainless 2FR2-10
Hastelloy C 2FR2HC-10
Titanium 2FR2TI-10
10µ 1.00 mm Stainless 10FR2-10
1/4"
(pkg. of 10)
0.5µ 1.00 mm Stainless .5FR4-10
1.00 mm Stainless 2FR4-10
Hastelloy C 2FR4HC-10
Titanium 2FR4TI-10
10µ 1.00 mm Stainless 10FR4-10
Hastelloy C 10FR4HC-10

MORE INFORMATION

SEE ALSO

TECH TIP

Frits and screens have significantly different thicknesses, so they cannot be used interchangeably in the same filter body.