By Astral
Part # 2104-008
Manufacturer Code 7131206053
INYO # 2104-008 ASTRAL # 713R1206053 THIS IS THE LID O-RING FOR AN ASTRAL CHLORINATOR MADE 06-2003 OR LATER OD: 4-1/8" ID: 3-3/4" THICKNESS: 3/16" THE EARLIER O-RING IS THE 2104-040 AND IS LARGER OUTSIDE DIAMETER, BUT NOT QUITE AS THICK
