The following changes are planned to the existing filters that are constructed from carbon steel cylinders.

The changes will take effect over the next few months.

  • Replace the plated brass pipe-thread taped compression fittings with ISO Straight-Thread Fittings (G-1/4) to improve leak rates.
  • The new fittings will not be plated, both for environmental reasons and to contain costs.
  • The new version incorporates a 10-micron frit incorporated into the end cap at the outlet end of the filter and a 40-micron frit at the inlet end, improving the particle filtration.
  • Stainless Steel Fittings are offered as an additional option.


Old (left) and new (right) fittings


Old (top) and new (bottom) version of the fittings


This can be considered a transparent change except for the elimination of the plating.

The overall length, from fitting end to fitting end has not changed, so that the new filters can be dropped into existing installations when replacement is necessary.

Except as noted above, the filter performance is unaffected by this change.

If you have any questions regarding these product changes please contact CRS at 1.502.491.6300 or