PINGEL Weldless Tank Bung — 1/8" NPT, 9/16" mounting hole, fits tanks up to 5/8" wall thickness
Weldless fitting with 1/8" NPT internal thread for a hose barb; requires a 9/16" hole and fits tanks with up to 5/8" wall. Includes o-ring, nut, washer and 80 μm filter. Made in the USA.