Good Morning David!
This is the 3 piece gasket set Russ Larson sells for the 20 tank. I have had great success using Larsons 2 and 3 piece tank gasket sets on the 20s and 40/45s.
Russ recommends using a light coat of “High Tack” spray gasket sealant on his tank gaskets. NAPA/PERMATEX type stuff.
Also using 22 “alignment pins” (which look a lot like 10-24 screws with the heads cut off) screwed into the threaded part of the two gasket areas allows you to keep all the gaskets in place as you are putting the two tank parts together as there will come a point when you really can’t see either gasket and it’s holes. Kinda gives you the confidence that nothing slid out of place. Now you can pull the “alignment pins” out one by one and replace with the original screws. “Alignment pins” that I use are about 7/8″ long.
Anyway, hope the attached picture is decent!
Respectfully,
Bob (In Sunny Southern Maine!)
