Thanks for starting this thread Bridger.
I have also looked for alternatives and read about someone using heavy truck air filters (the are similar in size to what we need). In my pursuit I came across Donaldson Torit P190817-016-436 or P190818-016-436. These filters have a13.84-inch outer diameter and a 26.00-inches length, with a 2.00-inch pleat height. Open at both ends with rubber gaskets with a continuous outer layer of 0.2-0.3 micron . I bought 2 from ebay for $80 or less in the past year. I also came across this supplier (https://www.systech-design.com/product/donaldson-torit-p190817-016-436/) who sells them new for $89. It appears these are actual Donaldson filters as many filter suppliers (like Killer Filter) make equivalent parts that fit the original manufacturers part, but are not original manufacturer parts. I have never ordered from systech, but they seem to have the best price for those models.
Hope that also helps with an alternative
I have also looked for alternatives and read about someone using heavy truck air filters (the are similar in size to what we need). In my pursuit I came across Donaldson Torit P190817-016-436 or P190818-016-436. These filters have a13.84-inch outer diameter and a 26.00-inches length, with a 2.00-inch pleat height. Open at both ends with rubber gaskets with a continuous outer layer of 0.2-0.3 micron . I bought 2 from ebay for $80 or less in the past year. I also came across this supplier (https://www.systech-design.com/product/donaldson-torit-p190817-016-436/) who sells them new for $89. It appears these are actual Donaldson filters as many filter suppliers (like Killer Filter) make equivalent parts that fit the original manufacturers part, but are not original manufacturer parts. I have never ordered from systech, but they seem to have the best price for those models.
Hope that also helps with an alternative