Post Filter 1 micron, 1-1/2″ NPT $308.00 Add to cart Post Filter 1 micron, 1-1/2″ NPT $516.00 Add to cart Post Filter 1 micron, 1″ NPT $269.00 Add to cart Post Filter 1 micron, 1/2″ NPT $184.00 Add to cart Post Filter 1 micron, 2-1/2″ NPT $1,045.00 Add to cart