Changing your pre-filter on your Reverse Osmosis (R/O) system is a regular maintenance activity that should be performed every 6 months. If water quality is poor, the frequency would be increased.
Sometimes this simple job can be made difficult by a faulty O-ring that seals the housing. Prowash now have stock of these parts to help those of you who struggle with an oversized/stretched O-ring every time you change your filter.
The use of O-ring grease can aid in sealing, and also help keep the O-ring in place while you are positioning the housing. Make sure not to over tighten the housing as this can be the cause of the stretched O-ring.
This O-ring is to be used in the ‘Big Blue’ housing that takes the Dual Gradient 25-1 micron filter. We also have a tool available to aid in the removal of the housing. It is recommended you relieve all pressure from the filter before removing the housing. When re-installing the housing, tightening by hand is usually sufficient.
O-Ring for Big Blue Filter Housing – Part # DH62562OR
Dual Gradient 25 to 1 Micron Filter – Part # DH62530
Tool to Open Big Micron Filters – Part # PW10431
Smaller R/O systems use the 1 micron filter which is longer in comparison, but smaller in diameter. Because of the smaller diameter the O-ring is less likely to stretch. O-rings are available for this filter, along with a tool to open the housing.
1 Micron 20” Filter - Part # DH62526
O-Ring for Amatek 20” Filter Housing - Part # DH62561OR
Tool to Open Small Micron Filters 20' - Part # PW10430