R0991000 DEL AOP Ozone Tubing Kit is a replacement part kit for DEL Ozone AOP 25 and AOP 40.

The R0991000:

• Contains ozone-resistant tubing plus Pool Ozone Check Valve 7-1140-07 and Hose Barb 7-1434-01 which were once sold separately (we have a few 7-1140-07 left so get yours while supplies last!)
• Replace the ozone gas line every year, or sooner if needed

If there is evidence of water leaking past the ozone check valve toward the ozone modules, shut the AOP 25 or 40 down immediately and replace the ozone gas line!