ASTRAL | CHEMICAL FEEDER | Oring, 5 1/2" OD | 711 R 1329035
OPTIMUS # 2104-040 ASTRAL # 713R1329045 THIS IS THE LID Oring FOR AN ASTRAL CHLORINATOR PRIOR TO 6-2003 OD: 5-1/2" ID: 5-3/16" THICKNESS: 5/32" THE LATER Oring IS THE 2104-008 AND IS A SMALLER INSIDE DIAMETER, BUT SLIGHTLY THICKER
This product has a 1 year warranty from the manufacturer