Lawrence Factor Filters
- I used re-packable filters the first year with my RIX compressor. And when I checked the indicator strip on filter #1, it was light blue. I repacked the filters the second year anyway but it was always on the back of my mind that I might not be using fresh enough filter media and indicator strip. So last year, I ordered brand new Pre-Packed Lawrence Factor filters. I use three:
#1 and #2 are all 13X Molecular Sieve for Drying Air
#3 is 3-Part with 13X Molecular Sieve, Hopcalite, and Activated Carbon. It Removes: H2O, CO, Hydrocarbons, Oil, Taste & Odor, Particles
- The pre-packs are about $30 apiece thru Filtertech... So roughly $100 to replace the set.
- (Above) These are filters 3, 2, and 1 after removal just recently. Air travels thru them from 1-3 (right to left above)... #1 being the first filter and #3 the last filter. You can see the #1 indicator strip has lost it's bright blue color... So, the set is just reaching it's "Used Up" condition and it's time to replace them.
Removing Lawrence Factor Filters - The Lawrence factor filters fit my filter tubes perfectly and seal with their own O-Ring. I lubed the O-Ring with high pressure breathing air grease before inserting. BUT, the ends of the filter tubes only have one grasping hole and I could NOT pull them out with the usual tool. So, I hooked up a scuba tank to the inlet and used air pressure to pop the filters out. After watching the first one go shooting across the floor, I held a sock over each of the other filter tubes and that caught the shooting filters like a catchers mitt!